Home / 31,862.44-43,976.82-21,811.24

Finding the Fourth Proportional to 31,862.44, 43,976.82 and 21,811.24

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Solution

The fourth proportional to 31,862.44, 43,976.82 and 21,811.24 is: 30,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.44 : 43,976.82 = 21,811.24 : x
  2. Step 2: Convert to fraction form
    31,862.44/43,976.82 = 21,811.24/x
  3. Step 3: Cross multiply
    31,862.44x = 43,976.82 × 21,811.24
  4. Step 4: Simplify right side
    31,862.44x = 959,188,975.46
  5. Step 5: Solve for x
    x = 959,188,975.46/31,862.44
  6. Step 6: Final answer
    x = 30,104.07

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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.