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Finding the Third Proportional to 18,216 and 26,708

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Solution

The third proportional to 18,216 and 26,708 is: 39,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216 : 26,708 = 26,708 : x
  2. Step 2: Convert to fraction form
    18,216/26,708 = 26,708/x
  3. Step 3: Cross multiply
    18,216x = 26,708 × 26,708
  4. Step 4: Simplify right side
    18,216x = 713,317,264
  5. Step 5: Solve for x
    x = 713,317,264/18,216
  6. Step 6: Final answer
    x = 39,158.83

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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.