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Finding the Third Proportional to 20,288 and 41,832

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Solution

The third proportional to 20,288 and 41,832 is: 86,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288 : 41,832 = 41,832 : x
  2. Step 2: Convert to fraction form
    20,288/41,832 = 41,832/x
  3. Step 3: Cross multiply
    20,288x = 41,832 × 41,832
  4. Step 4: Simplify right side
    20,288x = 1,749,916,224
  5. Step 5: Solve for x
    x = 1,749,916,224/20,288
  6. Step 6: Final answer
    x = 86,253.76

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.