Home / 20,342.22-30,512.42-5,551.09

Finding the Fourth Proportional to 20,342.22, 30,512.42 and 5,551.09

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Solution

The fourth proportional to 20,342.22, 30,512.42 and 5,551.09 is: 8,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.22 : 30,512.42 = 5,551.09 : x
  2. Step 2: Convert to fraction form
    20,342.22/30,512.42 = 5,551.09/x
  3. Step 3: Cross multiply
    20,342.22x = 30,512.42 × 5,551.09
  4. Step 4: Simplify right side
    20,342.22x = 169,377,189.54
  5. Step 5: Solve for x
    x = 169,377,189.54/20,342.22
  6. Step 6: Final answer
    x = 8,326.39

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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.