Home / 21,936-29,988

Finding the Third Proportional to 21,936 and 29,988

Calculator

Solution

The third proportional to 21,936 and 29,988 is: 40,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936 : 29,988 = 29,988 : x
  2. Step 2: Convert to fraction form
    21,936/29,988 = 29,988/x
  3. Step 3: Cross multiply
    21,936x = 29,988 × 29,988
  4. Step 4: Simplify right side
    21,936x = 899,280,144
  5. Step 5: Solve for x
    x = 899,280,144/21,936
  6. Step 6: Final answer
    x = 40,995.63

Related Problems

Find third proportional to 10,968 and 14,994
Half scale
Find third proportional to 43,872 and 59,976
Double scale
Find third proportional to 21,938 and 29,991
Similar ratio
Find third proportional to 32,904 and 44,982
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.