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Finding the Third Proportional to 19.27 and 40.97

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Solution

The third proportional to 19.27 and 40.97 is: 87.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.27 : 40.97 = 40.97 : x
  2. Step 2: Convert to fraction form
    19.27/40.97 = 40.97/x
  3. Step 3: Cross multiply
    19.27x = 40.97 × 40.97
  4. Step 4: Simplify right side
    19.27x = 1,678.44
  5. Step 5: Solve for x
    x = 1,678.44/19.27
  6. Step 6: Final answer
    x = 87.12

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.