Home / 28,869.75-43,305.89-9,149.76

Finding the Fourth Proportional to 28,869.75, 43,305.89 and 9,149.76

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Solution

The fourth proportional to 28,869.75, 43,305.89 and 9,149.76 is: 13,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.75 : 43,305.89 = 9,149.76 : x
  2. Step 2: Convert to fraction form
    28,869.75/43,305.89 = 9,149.76/x
  3. Step 3: Cross multiply
    28,869.75x = 43,305.89 × 9,149.76
  4. Step 4: Simplify right side
    28,869.75x = 396,238,454.34
  5. Step 5: Solve for x
    x = 396,238,454.34/28,869.75
  6. Step 6: Final answer
    x = 13,725.04

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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.