The ratio of nitrogen to potassium in a sample to soil is 12:9. If the sample has 36 units of nitrogen, how much potassium does the sample have?

The ratio of nitrogen to potassium is said to be : 12 : 9

Now, the given sample for the units of nitrogen is 36.

Let's find out how much will be the value of potassium

.=> 12 : 9 = 36 : x, where x will be the value of the potassium. First, let's multiply the inner value of the proportion

=> 9 * 36 = 324

=> 324 / 12 = 27

Now, the ratio: 12 : 9 = 36 : 27