Home / 31,684.05-47,523.60-8,309.88

Finding the Fourth Proportional to 31,684.05, 47,523.60 and 8,309.88

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Solution

The fourth proportional to 31,684.05, 47,523.60 and 8,309.88 is: 12,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.05 : 47,523.60 = 8,309.88 : x
  2. Step 2: Convert to fraction form
    31,684.05/47,523.60 = 8,309.88/x
  3. Step 3: Cross multiply
    31,684.05x = 47,523.60 × 8,309.88
  4. Step 4: Simplify right side
    31,684.05x = 394,915,413.17
  5. Step 5: Solve for x
    x = 394,915,413.17/31,684.05
  6. Step 6: Final answer
    x = 12,464.17

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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.