Home / 28,872.80-43,310.42-9,150.92

Finding the Fourth Proportional to 28,872.80, 43,310.42 and 9,150.92

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Solution

The fourth proportional to 28,872.80, 43,310.42 and 9,150.92 is: 13,726.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.80 : 43,310.42 = 9,150.92 : x
  2. Step 2: Convert to fraction form
    28,872.80/43,310.42 = 9,150.92/x
  3. Step 3: Cross multiply
    28,872.80x = 43,310.42 × 9,150.92
  4. Step 4: Simplify right side
    28,872.80x = 396,330,188.59
  5. Step 5: Solve for x
    x = 396,330,188.59/28,872.80
  6. Step 6: Final answer
    x = 13,726.77

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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.