Question

What is the solution to the proportion?

5/x = 2/16

A. x = 6.4

B. x = 1.6

C. x = 30

D. x = 40

Answer 1

D. x = 40

Explanation:

We can use cross products to solve this proportion

5 2

------ = ---------

x 16

5 * 16 = 2x

80 = 2x

Divide by 2

80/2 = 2x/2

40 =x