Home / 20,158.94-30,240.12-5,367.86

Finding the Fourth Proportional to 20,158.94, 30,240.12 and 5,367.86

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Solution

The fourth proportional to 20,158.94, 30,240.12 and 5,367.86 is: 8,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.94 : 30,240.12 = 5,367.86 : x
  2. Step 2: Convert to fraction form
    20,158.94/30,240.12 = 5,367.86/x
  3. Step 3: Cross multiply
    20,158.94x = 30,240.12 × 5,367.86
  4. Step 4: Simplify right side
    20,158.94x = 162,324,730.54
  5. Step 5: Solve for x
    x = 162,324,730.54/20,158.94
  6. Step 6: Final answer
    x = 8,052.25

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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.