Home / 20,234.41-27,923.20-11,281.75

Finding the Fourth Proportional to 20,234.41, 27,923.20 and 11,281.75

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Solution

The fourth proportional to 20,234.41, 27,923.20 and 11,281.75 is: 15,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.41 : 27,923.20 = 11,281.75 : x
  2. Step 2: Convert to fraction form
    20,234.41/27,923.20 = 11,281.75/x
  3. Step 3: Cross multiply
    20,234.41x = 27,923.20 × 11,281.75
  4. Step 4: Simplify right side
    20,234.41x = 315,022,561.60
  5. Step 5: Solve for x
    x = 315,022,561.60/20,234.41
  6. Step 6: Final answer
    x = 15,568.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.