Home / 20,424.62-30,633.24-5,629.87

Finding the Fourth Proportional to 20,424.62, 30,633.24 and 5,629.87

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Solution

The fourth proportional to 20,424.62, 30,633.24 and 5,629.87 is: 8,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.62 : 30,633.24 = 5,629.87 : x
  2. Step 2: Convert to fraction form
    20,424.62/30,633.24 = 5,629.87/x
  3. Step 3: Cross multiply
    20,424.62x = 30,633.24 × 5,629.87
  4. Step 4: Simplify right side
    20,424.62x = 172,461,158.88
  5. Step 5: Solve for x
    x = 172,461,158.88/20,424.62
  6. Step 6: Final answer
    x = 8,443.79

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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.