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Finding the Third Proportional to 15,385 and 33,644

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Solution

The third proportional to 15,385 and 33,644 is: 73,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385 : 33,644 = 33,644 : x
  2. Step 2: Convert to fraction form
    15,385/33,644 = 33,644/x
  3. Step 3: Cross multiply
    15,385x = 33,644 × 33,644
  4. Step 4: Simplify right side
    15,385x = 1,131,918,736
  5. Step 5: Solve for x
    x = 1,131,918,736/15,385
  6. Step 6: Final answer
    x = 73,572.88

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.