Home / 31,909.44-47,873.76-12,188.48

Finding the Fourth Proportional to 31,909.44, 47,873.76 and 12,188.48

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Solution

The fourth proportional to 31,909.44, 47,873.76 and 12,188.48 is: 18,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.44 : 47,873.76 = 12,188.48 : x
  2. Step 2: Convert to fraction form
    31,909.44/47,873.76 = 12,188.48/x
  3. Step 3: Cross multiply
    31,909.44x = 47,873.76 × 12,188.48
  4. Step 4: Simplify right side
    31,909.44x = 583,508,366.28
  5. Step 5: Solve for x
    x = 583,508,366.28/31,909.44
  6. Step 6: Final answer
    x = 18,286.39

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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.