Home / 28,872.86-43,310.84-9,152.96

Finding the Fourth Proportional to 28,872.86, 43,310.84 and 9,152.96

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Solution

The fourth proportional to 28,872.86, 43,310.84 and 9,152.96 is: 13,729.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.86 : 43,310.84 = 9,152.96 : x
  2. Step 2: Convert to fraction form
    28,872.86/43,310.84 = 9,152.96/x
  3. Step 3: Cross multiply
    28,872.86x = 43,310.84 × 9,152.96
  4. Step 4: Simplify right side
    28,872.86x = 396,422,123.77
  5. Step 5: Solve for x
    x = 396,422,123.77/28,872.86
  6. Step 6: Final answer
    x = 13,729.92

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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.