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Finding the Third Proportional to 17,988 and 26,910

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Solution

The third proportional to 17,988 and 26,910 is: 40,257.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988 : 26,910 = 26,910 : x
  2. Step 2: Convert to fraction form
    17,988/26,910 = 26,910/x
  3. Step 3: Cross multiply
    17,988x = 26,910 × 26,910
  4. Step 4: Simplify right side
    17,988x = 724,148,100
  5. Step 5: Solve for x
    x = 724,148,100/17,988
  6. Step 6: Final answer
    x = 40,257.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.