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Finding the Third Proportional to 20,181 and 28,282

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Solution

The third proportional to 20,181 and 28,282 is: 39,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181 : 28,282 = 28,282 : x
  2. Step 2: Convert to fraction form
    20,181/28,282 = 28,282/x
  3. Step 3: Cross multiply
    20,181x = 28,282 × 28,282
  4. Step 4: Simplify right side
    20,181x = 799,871,524
  5. Step 5: Solve for x
    x = 799,871,524/20,181
  6. Step 6: Final answer
    x = 39,634.88

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.