Home / 28,868.29-43,305.20-8,091.73

Finding the Fourth Proportional to 28,868.29, 43,305.20 and 8,091.73

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Solution

The fourth proportional to 28,868.29, 43,305.20 and 8,091.73 is: 12,138.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.29 : 43,305.20 = 8,091.73 : x
  2. Step 2: Convert to fraction form
    28,868.29/43,305.20 = 8,091.73/x
  3. Step 3: Cross multiply
    28,868.29x = 43,305.20 × 8,091.73
  4. Step 4: Simplify right side
    28,868.29x = 350,413,986.00
  5. Step 5: Solve for x
    x = 350,413,986.00/28,868.29
  6. Step 6: Final answer
    x = 12,138.37

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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.