Home / 22,711.06-31,333.97-13,755.70

Finding the Fourth Proportional to 22,711.06, 31,333.97 and 13,755.70

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Solution

The fourth proportional to 22,711.06, 31,333.97 and 13,755.70 is: 18,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.06 : 31,333.97 = 13,755.70 : x
  2. Step 2: Convert to fraction form
    22,711.06/31,333.97 = 13,755.70/x
  3. Step 3: Cross multiply
    22,711.06x = 31,333.97 × 13,755.70
  4. Step 4: Simplify right side
    22,711.06x = 431,020,691.13
  5. Step 5: Solve for x
    x = 431,020,691.13/22,711.06
  6. Step 6: Final answer
    x = 18,978.45

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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.