Home / 31,965.20-47,928.60-16,413.20

Finding the Fourth Proportional to 31,965.20, 47,928.60 and 16,413.20

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Solution

The fourth proportional to 31,965.20, 47,928.60 and 16,413.20 is: 24,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,965.20 : 47,928.60 = 16,413.20 : x
  2. Step 2: Convert to fraction form
    31,965.20/47,928.60 = 16,413.20/x
  3. Step 3: Cross multiply
    31,965.20x = 47,928.60 × 16,413.20
  4. Step 4: Simplify right side
    31,965.20x = 786,661,697.52
  5. Step 5: Solve for x
    x = 786,661,697.52/31,965.20
  6. Step 6: Final answer
    x = 24,609.94

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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.