Home / 31,781.25-43,702.61-27,582.21

Finding the Fourth Proportional to 31,781.25, 43,702.61 and 27,582.21

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Solution

The fourth proportional to 31,781.25, 43,702.61 and 27,582.21 is: 37,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.25 : 43,702.61 = 27,582.21 : x
  2. Step 2: Convert to fraction form
    31,781.25/43,702.61 = 27,582.21/x
  3. Step 3: Cross multiply
    31,781.25x = 43,702.61 × 27,582.21
  4. Step 4: Simplify right side
    31,781.25x = 1,205,414,428.66
  5. Step 5: Solve for x
    x = 1,205,414,428.66/31,781.25
  6. Step 6: Final answer
    x = 37,928.48

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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.