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Finding the Third Proportional to 15,624 and 18,952

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Solution

The third proportional to 15,624 and 18,952 is: 22,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624 : 18,952 = 18,952 : x
  2. Step 2: Convert to fraction form
    15,624/18,952 = 18,952/x
  3. Step 3: Cross multiply
    15,624x = 18,952 × 18,952
  4. Step 4: Simplify right side
    15,624x = 359,178,304
  5. Step 5: Solve for x
    x = 359,178,304/15,624
  6. Step 6: Final answer
    x = 22,988.88

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.