Home / 20,241.28-30,357.26-5,451.36

Finding the Fourth Proportional to 20,241.28, 30,357.26 and 5,451.36

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Solution

The fourth proportional to 20,241.28, 30,357.26 and 5,451.36 is: 8,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.28 : 30,357.26 = 5,451.36 : x
  2. Step 2: Convert to fraction form
    20,241.28/30,357.26 = 5,451.36/x
  3. Step 3: Cross multiply
    20,241.28x = 30,357.26 × 5,451.36
  4. Step 4: Simplify right side
    20,241.28x = 165,488,352.87
  5. Step 5: Solve for x
    x = 165,488,352.87/20,241.28
  6. Step 6: Final answer
    x = 8,175.78

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1.5x scale

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.