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Finding the Third Proportional to 8,119 and 17,621

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Solution

The third proportional to 8,119 and 17,621 is: 38,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119 : 17,621 = 17,621 : x
  2. Step 2: Convert to fraction form
    8,119/17,621 = 17,621/x
  3. Step 3: Cross multiply
    8,119x = 17,621 × 17,621
  4. Step 4: Simplify right side
    8,119x = 310,499,641
  5. Step 5: Solve for x
    x = 310,499,641/8,119
  6. Step 6: Final answer
    x = 38,243.58

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.