Home / 31,761.20-47,749.80-25,959.92

Finding the Fourth Proportional to 31,761.20, 47,749.80 and 25,959.92

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Solution

The fourth proportional to 31,761.20, 47,749.80 and 25,959.92 is: 39,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,761.20 : 47,749.80 = 25,959.92 : x
  2. Step 2: Convert to fraction form
    31,761.20/47,749.80 = 25,959.92/x
  3. Step 3: Cross multiply
    31,761.20x = 47,749.80 × 25,959.92
  4. Step 4: Simplify right side
    31,761.20x = 1,239,580,988.02
  5. Step 5: Solve for x
    x = 1,239,580,988.02/31,761.20
  6. Step 6: Final answer
    x = 39,028.15

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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.