Home / 31,876.05-47,814-15,185.46

Finding the Fourth Proportional to 31,876.05, 47,814 and 15,185.46

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Solution

The fourth proportional to 31,876.05, 47,814 and 15,185.46 is: 22,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,876.05 : 47,814 = 15,185.46 : x
  2. Step 2: Convert to fraction form
    31,876.05/47,814 = 15,185.46/x
  3. Step 3: Cross multiply
    31,876.05x = 47,814 × 15,185.46
  4. Step 4: Simplify right side
    31,876.05x = 726,077,584.44
  5. Step 5: Solve for x
    x = 726,077,584.44/31,876.05
  6. Step 6: Final answer
    x = 22,778.15

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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.