Home / 31,365.20-47,062.35-11,650.61

Finding the Fourth Proportional to 31,365.20, 47,062.35 and 11,650.61

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Solution

The fourth proportional to 31,365.20, 47,062.35 and 11,650.61 is: 17,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,365.20 : 47,062.35 = 11,650.61 : x
  2. Step 2: Convert to fraction form
    31,365.20/47,062.35 = 11,650.61/x
  3. Step 3: Cross multiply
    31,365.20x = 47,062.35 × 11,650.61
  4. Step 4: Simplify right side
    31,365.20x = 548,305,085.53
  5. Step 5: Solve for x
    x = 548,305,085.53/31,365.20
  6. Step 6: Final answer
    x = 17,481.32

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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.