Home / 47,163.92-70,721.54-13,879.66

Finding the Fourth Proportional to 47,163.92, 70,721.54 and 13,879.66

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Solution

The fourth proportional to 47,163.92, 70,721.54 and 13,879.66 is: 20,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,163.92 : 70,721.54 = 13,879.66 : x
  2. Step 2: Convert to fraction form
    47,163.92/70,721.54 = 13,879.66/x
  3. Step 3: Cross multiply
    47,163.92x = 70,721.54 × 13,879.66
  4. Step 4: Simplify right side
    47,163.92x = 981,591,037.28
  5. Step 5: Solve for x
    x = 981,591,037.28/47,163.92
  6. Step 6: Final answer
    x = 20,812.33

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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.