Home / 20,794.20-31,191.30-6,943.20

Finding the Fourth Proportional to 20,794.20, 31,191.30 and 6,943.20

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Solution

The fourth proportional to 20,794.20, 31,191.30 and 6,943.20 is: 10,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.20 : 31,191.30 = 6,943.20 : x
  2. Step 2: Convert to fraction form
    20,794.20/31,191.30 = 6,943.20/x
  3. Step 3: Cross multiply
    20,794.20x = 31,191.30 × 6,943.20
  4. Step 4: Simplify right side
    20,794.20x = 216,567,434.16
  5. Step 5: Solve for x
    x = 216,567,434.16/20,794.20
  6. Step 6: Final answer
    x = 10,414.80

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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.