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Finding the Third Proportional to 20,585 and 41,899

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Solution

The third proportional to 20,585 and 41,899 is: 85,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585 : 41,899 = 41,899 : x
  2. Step 2: Convert to fraction form
    20,585/41,899 = 41,899/x
  3. Step 3: Cross multiply
    20,585x = 41,899 × 41,899
  4. Step 4: Simplify right side
    20,585x = 1,755,526,201
  5. Step 5: Solve for x
    x = 1,755,526,201/20,585
  6. Step 6: Final answer
    x = 85,281.82

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.