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Finding the Third Proportional to 20,108.25 and 28,279.13

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Solution

The third proportional to 20,108.25 and 28,279.13 is: 39,770.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.25 : 28,279.13 = 28,279.13 : x
  2. Step 2: Convert to fraction form
    20,108.25/28,279.13 = 28,279.13/x
  3. Step 3: Cross multiply
    20,108.25x = 28,279.13 × 28,279.13
  4. Step 4: Simplify right side
    20,108.25x = 799,708,910.77
  5. Step 5: Solve for x
    x = 799,708,910.77/20,108.25
  6. Step 6: Final answer
    x = 39,770.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.