Home / 20,191.25-30,288.09-6,340.25

Finding the Fourth Proportional to 20,191.25, 30,288.09 and 6,340.25

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Solution

The fourth proportional to 20,191.25, 30,288.09 and 6,340.25 is: 9,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.25 : 30,288.09 = 6,340.25 : x
  2. Step 2: Convert to fraction form
    20,191.25/30,288.09 = 6,340.25/x
  3. Step 3: Cross multiply
    20,191.25x = 30,288.09 × 6,340.25
  4. Step 4: Simplify right side
    20,191.25x = 192,034,062.62
  5. Step 5: Solve for x
    x = 192,034,062.62/20,191.25
  6. Step 6: Final answer
    x = 9,510.76

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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.