Home / 20,481.08-30,723.33-5,490.34

Finding the Fourth Proportional to 20,481.08, 30,723.33 and 5,490.34

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Solution

The fourth proportional to 20,481.08, 30,723.33 and 5,490.34 is: 8,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.08 : 30,723.33 = 5,490.34 : x
  2. Step 2: Convert to fraction form
    20,481.08/30,723.33 = 5,490.34/x
  3. Step 3: Cross multiply
    20,481.08x = 30,723.33 × 5,490.34
  4. Step 4: Simplify right side
    20,481.08x = 168,681,450.82
  5. Step 5: Solve for x
    x = 168,681,450.82/20,481.08
  6. Step 6: Final answer
    x = 8,235.96

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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.