Home / 31,644.24-47,469.60-11,939.37

Finding the Fourth Proportional to 31,644.24, 47,469.60 and 11,939.37

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Solution

The fourth proportional to 31,644.24, 47,469.60 and 11,939.37 is: 17,910.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,644.24 : 47,469.60 = 11,939.37 : x
  2. Step 2: Convert to fraction form
    31,644.24/47,469.60 = 11,939.37/x
  3. Step 3: Cross multiply
    31,644.24x = 47,469.60 × 11,939.37
  4. Step 4: Simplify right side
    31,644.24x = 566,757,118.15
  5. Step 5: Solve for x
    x = 566,757,118.15/31,644.24
  6. Step 6: Final answer
    x = 17,910.28

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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.