Home / 38,379.60-57,574.64-13,413.85

Finding the Fourth Proportional to 38,379.60, 57,574.64 and 13,413.85

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Solution

The fourth proportional to 38,379.60, 57,574.64 and 13,413.85 is: 20,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.60 : 57,574.64 = 13,413.85 : x
  2. Step 2: Convert to fraction form
    38,379.60/57,574.64 = 13,413.85/x
  3. Step 3: Cross multiply
    38,379.60x = 57,574.64 × 13,413.85
  4. Step 4: Simplify right side
    38,379.60x = 772,297,584.76
  5. Step 5: Solve for x
    x = 772,297,584.76/38,379.60
  6. Step 6: Final answer
    x = 20,122.61

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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.