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Finding the Third Proportional to 20,143 and 41,338

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Solution

The third proportional to 20,143 and 41,338 is: 84,834.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143 : 41,338 = 41,338 : x
  2. Step 2: Convert to fraction form
    20,143/41,338 = 41,338/x
  3. Step 3: Cross multiply
    20,143x = 41,338 × 41,338
  4. Step 4: Simplify right side
    20,143x = 1,708,830,244
  5. Step 5: Solve for x
    x = 1,708,830,244/20,143
  6. Step 6: Final answer
    x = 84,834.94

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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.