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Finding the Fourth Proportional to 25,272, 34,872.12 and 14,657.76

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Solution

The fourth proportional to 25,272, 34,872.12 and 14,657.76 is: 20,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,272 : 34,872.12 = 14,657.76 : x
  2. Step 2: Convert to fraction form
    25,272/34,872.12 = 14,657.76/x
  3. Step 3: Cross multiply
    25,272x = 34,872.12 × 14,657.76
  4. Step 4: Simplify right side
    25,272x = 511,147,165.65
  5. Step 5: Solve for x
    x = 511,147,165.65/25,272
  6. Step 6: Final answer
    x = 20,225.83

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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.