Home / 20,226.33-30,322.49-8,538.03

Finding the Fourth Proportional to 20,226.33, 30,322.49 and 8,538.03

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Solution

The fourth proportional to 20,226.33, 30,322.49 and 8,538.03 is: 12,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.33 : 30,322.49 = 8,538.03 : x
  2. Step 2: Convert to fraction form
    20,226.33/30,322.49 = 8,538.03/x
  3. Step 3: Cross multiply
    20,226.33x = 30,322.49 × 8,538.03
  4. Step 4: Simplify right side
    20,226.33x = 258,894,286.60
  5. Step 5: Solve for x
    x = 258,894,286.60/20,226.33
  6. Step 6: Final answer
    x = 12,799.86

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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.