Home / 28,589.46-39,452.42-15,843.20

Finding the Fourth Proportional to 28,589.46, 39,452.42 and 15,843.20

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Solution

The fourth proportional to 28,589.46, 39,452.42 and 15,843.20 is: 21,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,589.46 : 39,452.42 = 15,843.20 : x
  2. Step 2: Convert to fraction form
    28,589.46/39,452.42 = 15,843.20/x
  3. Step 3: Cross multiply
    28,589.46x = 39,452.42 × 15,843.20
  4. Step 4: Simplify right side
    28,589.46x = 625,052,333.77
  5. Step 5: Solve for x
    x = 625,052,333.77/28,589.46
  6. Step 6: Final answer
    x = 21,863.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.