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Finding the Third Proportional to 20,767 and 31,177

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Solution

The third proportional to 20,767 and 31,177 is: 46,805.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767 : 31,177 = 31,177 : x
  2. Step 2: Convert to fraction form
    20,767/31,177 = 31,177/x
  3. Step 3: Cross multiply
    20,767x = 31,177 × 31,177
  4. Step 4: Simplify right side
    20,767x = 972,005,329
  5. Step 5: Solve for x
    x = 972,005,329/20,767
  6. Step 6: Final answer
    x = 46,805.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.