Home / 20,993.20-31,480.35-6,197.02

Finding the Fourth Proportional to 20,993.20, 31,480.35 and 6,197.02

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Solution

The fourth proportional to 20,993.20, 31,480.35 and 6,197.02 is: 9,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993.20 : 31,480.35 = 6,197.02 : x
  2. Step 2: Convert to fraction form
    20,993.20/31,480.35 = 6,197.02/x
  3. Step 3: Cross multiply
    20,993.20x = 31,480.35 × 6,197.02
  4. Step 4: Simplify right side
    20,993.20x = 195,084,358.56
  5. Step 5: Solve for x
    x = 195,084,358.56/20,993.20
  6. Step 6: Final answer
    x = 9,292.74

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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.