Home / 20,391.12-30,591.08-6,350.86

Finding the Fourth Proportional to 20,391.12, 30,591.08 and 6,350.86

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Solution

The fourth proportional to 20,391.12, 30,591.08 and 6,350.86 is: 9,527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.12 : 30,591.08 = 6,350.86 : x
  2. Step 2: Convert to fraction form
    20,391.12/30,591.08 = 6,350.86/x
  3. Step 3: Cross multiply
    20,391.12x = 30,591.08 × 6,350.86
  4. Step 4: Simplify right side
    20,391.12x = 194,279,666.33
  5. Step 5: Solve for x
    x = 194,279,666.33/20,391.12
  6. Step 6: Final answer
    x = 9,527.66

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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.