Question

Solve the following proportion for the unknown variable: 15/d = 24/40

Answer 1

The unknown variable d is, 25

Step-by-step explanation:

Proportion states that two ratios or fractions are equal.

Solve for d:

`(15)/(d) = (24)/(40)`

By cross multiply we have;

`600 = 24d`

Divide both sides by 24 we have;

`(600)/(24) = d`

Simplify:

25 = d

or

d = 25

therefore, the unknown variable d is, 25.

Answer 2

Answer:
d = 25

Step-by-step explanation:
To get the value of d, we will need to isolate the d on one side of the equation.

This can be done as follows:

`(15)/(d) = (24)/(40)`

First, we will do cross multiplication as follows:
40*15 = 24*d
600 = 24d

Then, we will isolate the d as follows:
24d = 600

`(24d)/(24) = (600)/(24)`

d = 25

Hope this helps :)