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Finding the Third Proportional to 15,874.50 and 30,309

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Solution

The third proportional to 15,874.50 and 30,309 is: 57,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.50 : 30,309 = 30,309 : x
  2. Step 2: Convert to fraction form
    15,874.50/30,309 = 30,309/x
  3. Step 3: Cross multiply
    15,874.50x = 30,309 × 30,309
  4. Step 4: Simplify right side
    15,874.50x = 918,635,481
  5. Step 5: Solve for x
    x = 918,635,481/15,874.50
  6. Step 6: Final answer
    x = 57,868.62

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.