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Finding the Third Proportional to 15,903 and 18,234

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Solution

The third proportional to 15,903 and 18,234 is: 20,906.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903 : 18,234 = 18,234 : x
  2. Step 2: Convert to fraction form
    15,903/18,234 = 18,234/x
  3. Step 3: Cross multiply
    15,903x = 18,234 × 18,234
  4. Step 4: Simplify right side
    15,903x = 332,478,756
  5. Step 5: Solve for x
    x = 332,478,756/15,903
  6. Step 6: Final answer
    x = 20,906.67

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.