Home / 38,228.18-57,239.49-31,179.11

Finding the Fourth Proportional to 38,228.18, 57,239.49 and 31,179.11

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Solution

The fourth proportional to 38,228.18, 57,239.49 and 31,179.11 is: 46,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,228.18 : 57,239.49 = 31,179.11 : x
  2. Step 2: Convert to fraction form
    38,228.18/57,239.49 = 31,179.11/x
  3. Step 3: Cross multiply
    38,228.18x = 57,239.49 × 31,179.11
  4. Step 4: Simplify right side
    38,228.18x = 1,784,676,355.05
  5. Step 5: Solve for x
    x = 1,784,676,355.05/38,228.18
  6. Step 6: Final answer
    x = 46,684.84

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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.