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Finding the Third Proportional to 12,720.38 and 27,628.88

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Solution

The third proportional to 12,720.38 and 27,628.88 is: 60,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.38 : 27,628.88 = 27,628.88 : x
  2. Step 2: Convert to fraction form
    12,720.38/27,628.88 = 27,628.88/x
  3. Step 3: Cross multiply
    12,720.38x = 27,628.88 × 27,628.88
  4. Step 4: Simplify right side
    12,720.38x = 763,354,733.77
  5. Step 5: Solve for x
    x = 763,354,733.77/12,720.38
  6. Step 6: Final answer
    x = 60,010.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.