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Finding the Third Proportional to 19,687 and 29,630

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Solution

The third proportional to 19,687 and 29,630 is: 44,594.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687 : 29,630 = 29,630 : x
  2. Step 2: Convert to fraction form
    19,687/29,630 = 29,630/x
  3. Step 3: Cross multiply
    19,687x = 29,630 × 29,630
  4. Step 4: Simplify right side
    19,687x = 877,936,900
  5. Step 5: Solve for x
    x = 877,936,900/19,687
  6. Step 6: Final answer
    x = 44,594.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.