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Finding the Third Proportional to 18,131 and 39,583

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Solution

The third proportional to 18,131 and 39,583 is: 86,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131 : 39,583 = 39,583 : x
  2. Step 2: Convert to fraction form
    18,131/39,583 = 39,583/x
  3. Step 3: Cross multiply
    18,131x = 39,583 × 39,583
  4. Step 4: Simplify right side
    18,131x = 1,566,813,889
  5. Step 5: Solve for x
    x = 1,566,813,889/18,131
  6. Step 6: Final answer
    x = 86,416.30

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.