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Finding the Third Proportional to 15,930 and 32,211

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Solution

The third proportional to 15,930 and 32,211 is: 65,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930 : 32,211 = 32,211 : x
  2. Step 2: Convert to fraction form
    15,930/32,211 = 32,211/x
  3. Step 3: Cross multiply
    15,930x = 32,211 × 32,211
  4. Step 4: Simplify right side
    15,930x = 1,037,548,521
  5. Step 5: Solve for x
    x = 1,037,548,521/15,930
  6. Step 6: Final answer
    x = 65,131.73

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.