Home / 36,031.20-54,046.80-12,654.60

Finding the Fourth Proportional to 36,031.20, 54,046.80 and 12,654.60

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Solution

The fourth proportional to 36,031.20, 54,046.80 and 12,654.60 is: 18,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,031.20 : 54,046.80 = 12,654.60 : x
  2. Step 2: Convert to fraction form
    36,031.20/54,046.80 = 12,654.60/x
  3. Step 3: Cross multiply
    36,031.20x = 54,046.80 × 12,654.60
  4. Step 4: Simplify right side
    36,031.20x = 683,940,635.28
  5. Step 5: Solve for x
    x = 683,940,635.28/36,031.20
  6. Step 6: Final answer
    x = 18,981.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.