Home / 28,758.24-43,034.76-20,869.92

Finding the Fourth Proportional to 28,758.24, 43,034.76 and 20,869.92

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Solution

The fourth proportional to 28,758.24, 43,034.76 and 20,869.92 is: 31,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.24 : 43,034.76 = 20,869.92 : x
  2. Step 2: Convert to fraction form
    28,758.24/43,034.76 = 20,869.92/x
  3. Step 3: Cross multiply
    28,758.24x = 43,034.76 × 20,869.92
  4. Step 4: Simplify right side
    28,758.24x = 898,131,998.42
  5. Step 5: Solve for x
    x = 898,131,998.42/28,758.24
  6. Step 6: Final answer
    x = 31,230.42

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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.