Home / 20,331.71-30,494.44-5,541.81

Finding the Fourth Proportional to 20,331.71, 30,494.44 and 5,541.81

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Solution

The fourth proportional to 20,331.71, 30,494.44 and 5,541.81 is: 8,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.71 : 30,494.44 = 5,541.81 : x
  2. Step 2: Convert to fraction form
    20,331.71/30,494.44 = 5,541.81/x
  3. Step 3: Cross multiply
    20,331.71x = 30,494.44 × 5,541.81
  4. Step 4: Simplify right side
    20,331.71x = 168,994,392.54
  5. Step 5: Solve for x
    x = 168,994,392.54/20,331.71
  6. Step 6: Final answer
    x = 8,311.87

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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.