Home / 36,240.80-54,366.64-12,865.28

Finding the Fourth Proportional to 36,240.80, 54,366.64 and 12,865.28

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Solution

The fourth proportional to 36,240.80, 54,366.64 and 12,865.28 is: 19,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,240.80 : 54,366.64 = 12,865.28 : x
  2. Step 2: Convert to fraction form
    36,240.80/54,366.64 = 12,865.28/x
  3. Step 3: Cross multiply
    36,240.80x = 54,366.64 × 12,865.28
  4. Step 4: Simplify right side
    36,240.80x = 699,442,046.26
  5. Step 5: Solve for x
    x = 699,442,046.26/36,240.80
  6. Step 6: Final answer
    x = 19,299.85

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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.