Home / 31,928.72-47,843.83-20,217.33

Finding the Fourth Proportional to 31,928.72, 47,843.83 and 20,217.33

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Solution

The fourth proportional to 31,928.72, 47,843.83 and 20,217.33 is: 30,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,928.72 : 47,843.83 = 20,217.33 : x
  2. Step 2: Convert to fraction form
    31,928.72/47,843.83 = 20,217.33/x
  3. Step 3: Cross multiply
    31,928.72x = 47,843.83 × 20,217.33
  4. Step 4: Simplify right side
    31,928.72x = 967,274,499.57
  5. Step 5: Solve for x
    x = 967,274,499.57/31,928.72
  6. Step 6: Final answer
    x = 30,294.81

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1.5x scale

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.