Home / 38,879.90-58,329.10-12,584.64

Finding the Fourth Proportional to 38,879.90, 58,329.10 and 12,584.64

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Solution

The fourth proportional to 38,879.90, 58,329.10 and 12,584.64 is: 18,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,879.90 : 58,329.10 = 12,584.64 : x
  2. Step 2: Convert to fraction form
    38,879.90/58,329.10 = 12,584.64/x
  3. Step 3: Cross multiply
    38,879.90x = 58,329.10 × 12,584.64
  4. Step 4: Simplify right side
    38,879.90x = 734,050,401.92
  5. Step 5: Solve for x
    x = 734,050,401.92/38,879.90
  6. Step 6: Final answer
    x = 18,879.95

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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.