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Finding the Third Proportional to 15,381 and 36,288

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Solution

The third proportional to 15,381 and 36,288 is: 85,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,381 : 36,288 = 36,288 : x
  2. Step 2: Convert to fraction form
    15,381/36,288 = 36,288/x
  3. Step 3: Cross multiply
    15,381x = 36,288 × 36,288
  4. Step 4: Simplify right side
    15,381x = 1,316,818,944
  5. Step 5: Solve for x
    x = 1,316,818,944/15,381
  6. Step 6: Final answer
    x = 85,613.35

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.