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Finding the Third Proportional to 20,455 and 44,131

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Solution

The third proportional to 20,455 and 44,131 is: 95,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455 : 44,131 = 44,131 : x
  2. Step 2: Convert to fraction form
    20,455/44,131 = 44,131/x
  3. Step 3: Cross multiply
    20,455x = 44,131 × 44,131
  4. Step 4: Simplify right side
    20,455x = 1,947,545,161
  5. Step 5: Solve for x
    x = 1,947,545,161/20,455
  6. Step 6: Final answer
    x = 95,211.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.