Home / 22,729.20-31,345.56-14,331.12

Finding the Fourth Proportional to 22,729.20, 31,345.56 and 14,331.12

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Solution

The fourth proportional to 22,729.20, 31,345.56 and 14,331.12 is: 19,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.20 : 31,345.56 = 14,331.12 : x
  2. Step 2: Convert to fraction form
    22,729.20/31,345.56 = 14,331.12/x
  3. Step 3: Cross multiply
    22,729.20x = 31,345.56 × 14,331.12
  4. Step 4: Simplify right side
    22,729.20x = 449,216,981.83
  5. Step 5: Solve for x
    x = 449,216,981.83/22,729.20
  6. Step 6: Final answer
    x = 19,763.87

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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.