Home / 31,418.29-47,128.04-25,149.20

Finding the Fourth Proportional to 31,418.29, 47,128.04 and 25,149.20

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Solution

The fourth proportional to 31,418.29, 47,128.04 and 25,149.20 is: 37,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.29 : 47,128.04 = 25,149.20 : x
  2. Step 2: Convert to fraction form
    31,418.29/47,128.04 = 25,149.20/x
  3. Step 3: Cross multiply
    31,418.29x = 47,128.04 × 25,149.20
  4. Step 4: Simplify right side
    31,418.29x = 1,185,232,377.82
  5. Step 5: Solve for x
    x = 1,185,232,377.82/31,418.29
  6. Step 6: Final answer
    x = 37,724.29

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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.