Question

Write and solve a proportion to answer the question.

36 is 0.9% of what number w?

Answer 1

The question can be written out like this:
36 = 0.009x

Multiply both sides by 1,000:
9x = 36,000

Divide both sides by 9:
x = 4,000

Answer 2

Proportionately, 36 is 0.9% of 4,000.

Proportion refers to the equation of two ratios.

A proportion is a portion of a whole value, which can be depicted as a fraction, decimal, or percentage.

Let the number = w

The given percentage or proportion = 0.9% = 0.009

Proportionately, if 36 is 0.9% of w, w equals 4,000 (36/0.009)

Thus, we can conclude that the value of w is 4,000 if 0.9% of w is 36.