Home / 31,481.15-47,198.61-14,831.81

Finding the Fourth Proportional to 31,481.15, 47,198.61 and 14,831.81

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Solution

The fourth proportional to 31,481.15, 47,198.61 and 14,831.81 is: 22,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.15 : 47,198.61 = 14,831.81 : x
  2. Step 2: Convert to fraction form
    31,481.15/47,198.61 = 14,831.81/x
  3. Step 3: Cross multiply
    31,481.15x = 47,198.61 × 14,831.81
  4. Step 4: Simplify right side
    31,481.15x = 700,040,815.78
  5. Step 5: Solve for x
    x = 700,040,815.78/31,481.15
  6. Step 6: Final answer
    x = 22,236.82

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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.