Home / 31,945.28-47,917.92-11,174.72

Finding the Fourth Proportional to 31,945.28, 47,917.92 and 11,174.72

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Solution

The fourth proportional to 31,945.28, 47,917.92 and 11,174.72 is: 16,762.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,945.28 : 47,917.92 = 11,174.72 : x
  2. Step 2: Convert to fraction form
    31,945.28/47,917.92 = 11,174.72/x
  3. Step 3: Cross multiply
    31,945.28x = 47,917.92 × 11,174.72
  4. Step 4: Simplify right side
    31,945.28x = 535,469,338.98
  5. Step 5: Solve for x
    x = 535,469,338.98/31,945.28
  6. Step 6: Final answer
    x = 16,762.08

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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.