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Finding the Third Proportional to 20,515 and 48,401

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Solution

The third proportional to 20,515 and 48,401 is: 114,192.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515 : 48,401 = 48,401 : x
  2. Step 2: Convert to fraction form
    20,515/48,401 = 48,401/x
  3. Step 3: Cross multiply
    20,515x = 48,401 × 48,401
  4. Step 4: Simplify right side
    20,515x = 2,342,656,801
  5. Step 5: Solve for x
    x = 2,342,656,801/20,515
  6. Step 6: Final answer
    x = 114,192.39

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.