Home / 31,912.20-47,854.41-9,720.36

Finding the Fourth Proportional to 31,912.20, 47,854.41 and 9,720.36

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Solution

The fourth proportional to 31,912.20, 47,854.41 and 9,720.36 is: 14,576.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,912.20 : 47,854.41 = 9,720.36 : x
  2. Step 2: Convert to fraction form
    31,912.20/47,854.41 = 9,720.36/x
  3. Step 3: Cross multiply
    31,912.20x = 47,854.41 × 9,720.36
  4. Step 4: Simplify right side
    31,912.20x = 465,162,092.79
  5. Step 5: Solve for x
    x = 465,162,092.79/31,912.20
  6. Step 6: Final answer
    x = 14,576.31

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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.