Home / 20,311.49-30,467.19-5,522.56

Finding the Fourth Proportional to 20,311.49, 30,467.19 and 5,522.56

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Solution

The fourth proportional to 20,311.49, 30,467.19 and 5,522.56 is: 8,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311.49 : 30,467.19 = 5,522.56 : x
  2. Step 2: Convert to fraction form
    20,311.49/30,467.19 = 5,522.56/x
  3. Step 3: Cross multiply
    20,311.49x = 30,467.19 × 5,522.56
  4. Step 4: Simplify right side
    20,311.49x = 168,256,732.47
  5. Step 5: Solve for x
    x = 168,256,732.47/20,311.49
  6. Step 6: Final answer
    x = 8,283.82

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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.