Home / 20,371.68-30,561.84-6,331.37

Finding the Fourth Proportional to 20,371.68, 30,561.84 and 6,331.37

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Solution

The fourth proportional to 20,371.68, 30,561.84 and 6,331.37 is: 9,498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.68 : 30,561.84 = 6,331.37 : x
  2. Step 2: Convert to fraction form
    20,371.68/30,561.84 = 6,331.37/x
  3. Step 3: Cross multiply
    20,371.68x = 30,561.84 × 6,331.37
  4. Step 4: Simplify right side
    20,371.68x = 193,498,190.82
  5. Step 5: Solve for x
    x = 193,498,190.82/20,371.68
  6. Step 6: Final answer
    x = 9,498.39

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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.