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Finding the Fourth Proportional to 22,704, 31,332.54 and 18,920.85

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Solution

The fourth proportional to 22,704, 31,332.54 and 18,920.85 is: 26,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,704 : 31,332.54 = 18,920.85 : x
  2. Step 2: Convert to fraction form
    22,704/31,332.54 = 18,920.85/x
  3. Step 3: Cross multiply
    22,704x = 31,332.54 × 18,920.85
  4. Step 4: Simplify right side
    22,704x = 592,838,289.46
  5. Step 5: Solve for x
    x = 592,838,289.46/22,704
  6. Step 6: Final answer
    x = 26,111.62

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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.