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Finding the Third Proportional to 15,354 and 31,800

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Solution

The third proportional to 15,354 and 31,800 is: 65,861.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,354 : 31,800 = 31,800 : x
  2. Step 2: Convert to fraction form
    15,354/31,800 = 31,800/x
  3. Step 3: Cross multiply
    15,354x = 31,800 × 31,800
  4. Step 4: Simplify right side
    15,354x = 1,011,240,000
  5. Step 5: Solve for x
    x = 1,011,240,000/15,354
  6. Step 6: Final answer
    x = 65,861.66

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.