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Finding the Third Proportional to 20,305.69 and 27,663.19

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Solution

The third proportional to 20,305.69 and 27,663.19 is: 37,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.69 : 27,663.19 = 27,663.19 : x
  2. Step 2: Convert to fraction form
    20,305.69/27,663.19 = 27,663.19/x
  3. Step 3: Cross multiply
    20,305.69x = 27,663.19 × 27,663.19
  4. Step 4: Simplify right side
    20,305.69x = 765,251,942.66
  5. Step 5: Solve for x
    x = 765,251,942.66/20,305.69
  6. Step 6: Final answer
    x = 37,686.58

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.