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Finding the Third Proportional to 18,118 and 28,635

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Solution

The third proportional to 18,118 and 28,635 is: 45,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118 : 28,635 = 28,635 : x
  2. Step 2: Convert to fraction form
    18,118/28,635 = 28,635/x
  3. Step 3: Cross multiply
    18,118x = 28,635 × 28,635
  4. Step 4: Simplify right side
    18,118x = 819,963,225
  5. Step 5: Solve for x
    x = 819,963,225/18,118
  6. Step 6: Final answer
    x = 45,256.83

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.