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Finding the Third Proportional to 12,679.50 and 27,951

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Solution

The third proportional to 12,679.50 and 27,951 is: 61,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.50 : 27,951 = 27,951 : x
  2. Step 2: Convert to fraction form
    12,679.50/27,951 = 27,951/x
  3. Step 3: Cross multiply
    12,679.50x = 27,951 × 27,951
  4. Step 4: Simplify right side
    12,679.50x = 781,258,401
  5. Step 5: Solve for x
    x = 781,258,401/12,679.50
  6. Step 6: Final answer
    x = 61,615.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.