Home / 38,540.33-57,716.15-31,835.81

Finding the Fourth Proportional to 38,540.33, 57,716.15 and 31,835.81

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Solution

The fourth proportional to 38,540.33, 57,716.15 and 31,835.81 is: 47,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,540.33 : 57,716.15 = 31,835.81 : x
  2. Step 2: Convert to fraction form
    38,540.33/57,716.15 = 31,835.81/x
  3. Step 3: Cross multiply
    38,540.33x = 57,716.15 × 31,835.81
  4. Step 4: Simplify right side
    38,540.33x = 1,837,440,208.12
  5. Step 5: Solve for x
    x = 1,837,440,208.12/38,540.33
  6. Step 6: Final answer
    x = 47,675.78

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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.