Question

or
Solve for d in the proportion.

d
2
=
20
4


d = ??

Answer 1

To solve for d, we can cross multiply:

d * 4 = 2 * 20

4d = 40

Divide both sides by 4:

d = 10

Answer 2

Solve for a in the proportion.

4
10
=
6
a


a =

Answer 3

To solve for a, we can cross multiply:

4 * a = 10 * 6

4a = 60

Divide both sides by 4:

a = 15

Answer 4

7
3
=
14
a


a =

Answer 5

To solve for a, we can cross multiply:

7 * a = 3 * 14

7a = 42

Divide both sides by 7:

a = 6