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Finding the Third Proportional to 8,644 and 20,458

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Solution

The third proportional to 8,644 and 20,458 is: 48,418.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644 : 20,458 = 20,458 : x
  2. Step 2: Convert to fraction form
    8,644/20,458 = 20,458/x
  3. Step 3: Cross multiply
    8,644x = 20,458 × 20,458
  4. Step 4: Simplify right side
    8,644x = 418,529,764
  5. Step 5: Solve for x
    x = 418,529,764/8,644
  6. Step 6: Final answer
    x = 48,418.53

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.