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Finding the Fourth Proportional to 22,516.58, 31,074.08 and 12,957.92

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Solution

The fourth proportional to 22,516.58, 31,074.08 and 12,957.92 is: 17,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,516.58 : 31,074.08 = 12,957.92 : x
  2. Step 2: Convert to fraction form
    22,516.58/31,074.08 = 12,957.92/x
  3. Step 3: Cross multiply
    22,516.58x = 31,074.08 × 12,957.92
  4. Step 4: Simplify right side
    22,516.58x = 402,655,586.76
  5. Step 5: Solve for x
    x = 402,655,586.76/22,516.58
  6. Step 6: Final answer
    x = 17,882.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.