Home / 38,413.27-57,619.91-12,120.06

Finding the Fourth Proportional to 38,413.27, 57,619.91 and 12,120.06

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Solution

The fourth proportional to 38,413.27, 57,619.91 and 12,120.06 is: 18,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,413.27 : 57,619.91 = 12,120.06 : x
  2. Step 2: Convert to fraction form
    38,413.27/57,619.91 = 12,120.06/x
  3. Step 3: Cross multiply
    38,413.27x = 57,619.91 × 12,120.06
  4. Step 4: Simplify right side
    38,413.27x = 698,356,766.39
  5. Step 5: Solve for x
    x = 698,356,766.39/38,413.27
  6. Step 6: Final answer
    x = 18,180.09

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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.