Home / 31,865.28-47,796.09-15,236.79

Finding the Fourth Proportional to 31,865.28, 47,796.09 and 15,236.79

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Solution

The fourth proportional to 31,865.28, 47,796.09 and 15,236.79 is: 22,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.28 : 47,796.09 = 15,236.79 : x
  2. Step 2: Convert to fraction form
    31,865.28/47,796.09 = 15,236.79/x
  3. Step 3: Cross multiply
    31,865.28x = 47,796.09 × 15,236.79
  4. Step 4: Simplify right side
    31,865.28x = 728,258,986.15
  5. Step 5: Solve for x
    x = 728,258,986.15/31,865.28
  6. Step 6: Final answer
    x = 22,854.31

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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.