Home / 38,633.88-57,913.82-12,321.58

Finding the Fourth Proportional to 38,633.88, 57,913.82 and 12,321.58

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Solution

The fourth proportional to 38,633.88, 57,913.82 and 12,321.58 is: 18,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,633.88 : 57,913.82 = 12,321.58 : x
  2. Step 2: Convert to fraction form
    38,633.88/57,913.82 = 12,321.58/x
  3. Step 3: Cross multiply
    38,633.88x = 57,913.82 × 12,321.58
  4. Step 4: Simplify right side
    38,633.88x = 713,589,766.24
  5. Step 5: Solve for x
    x = 713,589,766.24/38,633.88
  6. Step 6: Final answer
    x = 18,470.57

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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.