Home / 31,717.20-43,680.96-31,028.43

Finding the Fourth Proportional to 31,717.20, 43,680.96 and 31,028.43

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Solution

The fourth proportional to 31,717.20, 43,680.96 and 31,028.43 is: 42,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717.20 : 43,680.96 = 31,028.43 : x
  2. Step 2: Convert to fraction form
    31,717.20/43,680.96 = 31,028.43/x
  3. Step 3: Cross multiply
    31,717.20x = 43,680.96 × 31,028.43
  4. Step 4: Simplify right side
    31,717.20x = 1,355,351,609.69
  5. Step 5: Solve for x
    x = 1,355,351,609.69/31,717.20
  6. Step 6: Final answer
    x = 42,732.39

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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.