Home / 31,573.76-43,573.20-18,149.36

Finding the Fourth Proportional to 31,573.76, 43,573.20 and 18,149.36

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Solution

The fourth proportional to 31,573.76, 43,573.20 and 18,149.36 is: 25,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,573.76 : 43,573.20 = 18,149.36 : x
  2. Step 2: Convert to fraction form
    31,573.76/43,573.20 = 18,149.36/x
  3. Step 3: Cross multiply
    31,573.76x = 43,573.20 × 18,149.36
  4. Step 4: Simplify right side
    31,573.76x = 790,825,693.15
  5. Step 5: Solve for x
    x = 790,825,693.15/31,573.76
  6. Step 6: Final answer
    x = 25,046.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.