Home / 31,418.94-47,135.92-9,231.82

Finding the Fourth Proportional to 31,418.94, 47,135.92 and 9,231.82

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Solution

The fourth proportional to 31,418.94, 47,135.92 and 9,231.82 is: 13,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.94 : 47,135.92 = 9,231.82 : x
  2. Step 2: Convert to fraction form
    31,418.94/47,135.92 = 9,231.82/x
  3. Step 3: Cross multiply
    31,418.94x = 47,135.92 × 9,231.82
  4. Step 4: Simplify right side
    31,418.94x = 435,150,328.97
  5. Step 5: Solve for x
    x = 435,150,328.97/31,418.94
  6. Step 6: Final answer
    x = 13,849.94

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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.