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Finding the Third Proportional to 20,356 and 41,800

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Solution

The third proportional to 20,356 and 41,800 is: 85,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356 : 41,800 = 41,800 : x
  2. Step 2: Convert to fraction form
    20,356/41,800 = 41,800/x
  3. Step 3: Cross multiply
    20,356x = 41,800 × 41,800
  4. Step 4: Simplify right side
    20,356x = 1,747,240,000
  5. Step 5: Solve for x
    x = 1,747,240,000/20,356
  6. Step 6: Final answer
    x = 85,834.15

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.