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Finding the Third Proportional to 18,397.13 and 28,319.63

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Solution

The third proportional to 18,397.13 and 28,319.63 is: 43,593.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.13 : 28,319.63 = 28,319.63 : x
  2. Step 2: Convert to fraction form
    18,397.13/28,319.63 = 28,319.63/x
  3. Step 3: Cross multiply
    18,397.13x = 28,319.63 × 28,319.63
  4. Step 4: Simplify right side
    18,397.13x = 802,001,160.14
  5. Step 5: Solve for x
    x = 802,001,160.14/18,397.13
  6. Step 6: Final answer
    x = 43,593.83

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.