Home / 20,195.92-30,289.17-7,711.36

Finding the Fourth Proportional to 20,195.92, 30,289.17 and 7,711.36

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Solution

The fourth proportional to 20,195.92, 30,289.17 and 7,711.36 is: 11,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.92 : 30,289.17 = 7,711.36 : x
  2. Step 2: Convert to fraction form
    20,195.92/30,289.17 = 7,711.36/x
  3. Step 3: Cross multiply
    20,195.92x = 30,289.17 × 7,711.36
  4. Step 4: Simplify right side
    20,195.92x = 233,570,693.97
  5. Step 5: Solve for x
    x = 233,570,693.97/20,195.92
  6. Step 6: Final answer
    x = 11,565.24

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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.