Home / 25,942.11-38,918.85-8,413.71

Finding the Fourth Proportional to 25,942.11, 38,918.85 and 8,413.71

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Solution

The fourth proportional to 25,942.11, 38,918.85 and 8,413.71 is: 12,622.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,942.11 : 38,918.85 = 8,413.71 : x
  2. Step 2: Convert to fraction form
    25,942.11/38,918.85 = 8,413.71/x
  3. Step 3: Cross multiply
    25,942.11x = 38,918.85 × 8,413.71
  4. Step 4: Simplify right side
    25,942.11x = 327,451,917.43
  5. Step 5: Solve for x
    x = 327,451,917.43/25,942.11
  6. Step 6: Final answer
    x = 12,622.41

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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.