Home / 36,486.30-54,729.45-13,115.10

Finding the Fourth Proportional to 36,486.30, 54,729.45 and 13,115.10

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Solution

The fourth proportional to 36,486.30, 54,729.45 and 13,115.10 is: 19,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,486.30 : 54,729.45 = 13,115.10 : x
  2. Step 2: Convert to fraction form
    36,486.30/54,729.45 = 13,115.10/x
  3. Step 3: Cross multiply
    36,486.30x = 54,729.45 × 13,115.10
  4. Step 4: Simplify right side
    36,486.30x = 717,782,209.70
  5. Step 5: Solve for x
    x = 717,782,209.70/36,486.30
  6. Step 6: Final answer
    x = 19,672.65

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Similar ratio
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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.