The ratio of the longer side of a rectangle to its

shorter side is 4 to 3. If the shorter side of the

rectangle is 21 ft, what is the length of its longer side?

28 ft

Step-by-step explanation:

Given,

The ratio of the longer side of a rectangle to its shorter side=4:3

It is said that the length of the shorter side is 21 ft.

Let the longer side be x.

Then,

4:3=x:21

or, 4/3=x/21

or, x = (4*21) / 3=28 ft. [ANS]