Home / 20,331.65-30,494.39-5,541.75

Finding the Fourth Proportional to 20,331.65, 30,494.39 and 5,541.75

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Solution

The fourth proportional to 20,331.65, 30,494.39 and 5,541.75 is: 8,311.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.65 : 30,494.39 = 5,541.75 : x
  2. Step 2: Convert to fraction form
    20,331.65/30,494.39 = 5,541.75/x
  3. Step 3: Cross multiply
    20,331.65x = 30,494.39 × 5,541.75
  4. Step 4: Simplify right side
    20,331.65x = 168,992,258.07
  5. Step 5: Solve for x
    x = 168,992,258.07/20,331.65
  6. Step 6: Final answer
    x = 8,311.78

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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.