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Finding the Fourth Proportional to 22,708.60, 31,337.58 and 12,637

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Solution

The fourth proportional to 22,708.60, 31,337.58 and 12,637 is: 17,438.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.60 : 31,337.58 = 12,637 : x
  2. Step 2: Convert to fraction form
    22,708.60/31,337.58 = 12,637/x
  3. Step 3: Cross multiply
    22,708.60x = 31,337.58 × 12,637
  4. Step 4: Simplify right side
    22,708.60x = 396,012,998.46
  5. Step 5: Solve for x
    x = 396,012,998.46/22,708.60
  6. Step 6: Final answer
    x = 17,438.90

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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.