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Finding the Third Proportional to 17,686 and 40,330

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Solution

The third proportional to 17,686 and 40,330 is: 91,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,686 : 40,330 = 40,330 : x
  2. Step 2: Convert to fraction form
    17,686/40,330 = 40,330/x
  3. Step 3: Cross multiply
    17,686x = 40,330 × 40,330
  4. Step 4: Simplify right side
    17,686x = 1,626,508,900
  5. Step 5: Solve for x
    x = 1,626,508,900/17,686
  6. Step 6: Final answer
    x = 91,965.90

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.