Home / 28,961.62-43,438.28-11,200.61

Finding the Fourth Proportional to 28,961.62, 43,438.28 and 11,200.61

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Solution

The fourth proportional to 28,961.62, 43,438.28 and 11,200.61 is: 16,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.62 : 43,438.28 = 11,200.61 : x
  2. Step 2: Convert to fraction form
    28,961.62/43,438.28 = 11,200.61/x
  3. Step 3: Cross multiply
    28,961.62x = 43,438.28 × 11,200.61
  4. Step 4: Simplify right side
    28,961.62x = 486,535,285.94
  5. Step 5: Solve for x
    x = 486,535,285.94/28,961.62
  6. Step 6: Final answer
    x = 16,799.31

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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.