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Finding the Third Proportional to 18,588 and 40,865

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Solution

The third proportional to 18,588 and 40,865 is: 89,840.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588 : 40,865 = 40,865 : x
  2. Step 2: Convert to fraction form
    18,588/40,865 = 40,865/x
  3. Step 3: Cross multiply
    18,588x = 40,865 × 40,865
  4. Step 4: Simplify right side
    18,588x = 1,669,948,225
  5. Step 5: Solve for x
    x = 1,669,948,225/18,588
  6. Step 6: Final answer
    x = 89,840.12

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.