Question

A ratio is equal to 3:8 if the antecedent is 21 find the consequent​

Answer 1

56

Explanation:

To find the "consequent," write out and solve an equation of ratios:

3 x

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

8 21

Through cross-multiplication, this yields 8x = 63, so that x must be x = 63/8.

Alternatively, solve this modified version of the original equation for x:

3 21

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

8 x

Then 3x = 8(21), or x = 8(7), or x = 56.

Note that 21 and 56 are in the ratio 3:8