Home / 38,650.62-57,987-18,934.95

Finding the Fourth Proportional to 38,650.62, 57,987 and 18,934.95

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Solution

The fourth proportional to 38,650.62, 57,987 and 18,934.95 is: 28,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,650.62 : 57,987 = 18,934.95 : x
  2. Step 2: Convert to fraction form
    38,650.62/57,987 = 18,934.95/x
  3. Step 3: Cross multiply
    38,650.62x = 57,987 × 18,934.95
  4. Step 4: Simplify right side
    38,650.62x = 1,097,980,945.65
  5. Step 5: Solve for x
    x = 1,097,980,945.65/38,650.62
  6. Step 6: Final answer
    x = 28,407.85

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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.