Home / 20,133.44-30,191.66-6,979.88

Finding the Fourth Proportional to 20,133.44, 30,191.66 and 6,979.88

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Solution

The fourth proportional to 20,133.44, 30,191.66 and 6,979.88 is: 10,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.44 : 30,191.66 = 6,979.88 : x
  2. Step 2: Convert to fraction form
    20,133.44/30,191.66 = 6,979.88/x
  3. Step 3: Cross multiply
    20,133.44x = 30,191.66 × 6,979.88
  4. Step 4: Simplify right side
    20,133.44x = 210,734,163.80
  5. Step 5: Solve for x
    x = 210,734,163.80/20,133.44
  6. Step 6: Final answer
    x = 10,466.87

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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.