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Finding the Third Proportional to 18,370 and 26,918

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Solution

The third proportional to 18,370 and 26,918 is: 39,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370 : 26,918 = 26,918 : x
  2. Step 2: Convert to fraction form
    18,370/26,918 = 26,918/x
  3. Step 3: Cross multiply
    18,370x = 26,918 × 26,918
  4. Step 4: Simplify right side
    18,370x = 724,578,724
  5. Step 5: Solve for x
    x = 724,578,724/18,370
  6. Step 6: Final answer
    x = 39,443.59

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.