Home / 39,972.10-55,161.69-22,066.78

Finding the Fourth Proportional to 39,972.10, 55,161.69 and 22,066.78

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Solution

The fourth proportional to 39,972.10, 55,161.69 and 22,066.78 is: 30,452.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,972.10 : 55,161.69 = 22,066.78 : x
  2. Step 2: Convert to fraction form
    39,972.10/55,161.69 = 22,066.78/x
  3. Step 3: Cross multiply
    39,972.10x = 55,161.69 × 22,066.78
  4. Step 4: Simplify right side
    39,972.10x = 1,217,240,877.66
  5. Step 5: Solve for x
    x = 1,217,240,877.66/39,972.10
  6. Step 6: Final answer
    x = 30,452.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.