Home / 31,921.60-47,970.24-17,141.44

Finding the Fourth Proportional to 31,921.60, 47,970.24 and 17,141.44

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Solution

The fourth proportional to 31,921.60, 47,970.24 and 17,141.44 is: 25,759.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.60 : 47,970.24 = 17,141.44 : x
  2. Step 2: Convert to fraction form
    31,921.60/47,970.24 = 17,141.44/x
  3. Step 3: Cross multiply
    31,921.60x = 47,970.24 × 17,141.44
  4. Step 4: Simplify right side
    31,921.60x = 822,278,990.75
  5. Step 5: Solve for x
    x = 822,278,990.75/31,921.60
  6. Step 6: Final answer
    x = 25,759.33

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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.