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Finding the Third Proportional to 20,612 and 29,116

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Solution

The third proportional to 20,612 and 29,116 is: 41,128.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612 : 29,116 = 29,116 : x
  2. Step 2: Convert to fraction form
    20,612/29,116 = 29,116/x
  3. Step 3: Cross multiply
    20,612x = 29,116 × 29,116
  4. Step 4: Simplify right side
    20,612x = 847,741,456
  5. Step 5: Solve for x
    x = 847,741,456/20,612
  6. Step 6: Final answer
    x = 41,128.54

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.