Home / 31,418.45-47,135.18-9,231.33

Finding the Fourth Proportional to 31,418.45, 47,135.18 and 9,231.33

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Solution

The fourth proportional to 31,418.45, 47,135.18 and 9,231.33 is: 13,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.45 : 47,135.18 = 9,231.33 : x
  2. Step 2: Convert to fraction form
    31,418.45/47,135.18 = 9,231.33/x
  3. Step 3: Cross multiply
    31,418.45x = 47,135.18 × 9,231.33
  4. Step 4: Simplify right side
    31,418.45x = 435,120,355.03
  5. Step 5: Solve for x
    x = 435,120,355.03/31,418.45
  6. Step 6: Final answer
    x = 13,849.20

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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.