Home / 22,518-31,076.76-12,583.92

Finding the Fourth Proportional to 22,518, 31,076.76 and 12,583.92

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Solution

The fourth proportional to 22,518, 31,076.76 and 12,583.92 is: 17,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,518 : 31,076.76 = 12,583.92 : x
  2. Step 2: Convert to fraction form
    22,518/31,076.76 = 12,583.92/x
  3. Step 3: Cross multiply
    22,518x = 31,076.76 × 12,583.92
  4. Step 4: Simplify right side
    22,518x = 391,067,461.70
  5. Step 5: Solve for x
    x = 391,067,461.70/22,518
  6. Step 6: Final answer
    x = 17,366.88

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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.