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Finding the Third Proportional to 15,908 and 36,978

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Solution

The third proportional to 15,908 and 36,978 is: 85,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908 : 36,978 = 36,978 : x
  2. Step 2: Convert to fraction form
    15,908/36,978 = 36,978/x
  3. Step 3: Cross multiply
    15,908x = 36,978 × 36,978
  4. Step 4: Simplify right side
    15,908x = 1,367,372,484
  5. Step 5: Solve for x
    x = 1,367,372,484/15,908
  6. Step 6: Final answer
    x = 85,955.02

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.