Home / 20,620.45-30,932.94-6,577.21

Finding the Fourth Proportional to 20,620.45, 30,932.94 and 6,577.21

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Solution

The fourth proportional to 20,620.45, 30,932.94 and 6,577.21 is: 9,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.45 : 30,932.94 = 6,577.21 : x
  2. Step 2: Convert to fraction form
    20,620.45/30,932.94 = 6,577.21/x
  3. Step 3: Cross multiply
    20,620.45x = 30,932.94 × 6,577.21
  4. Step 4: Simplify right side
    20,620.45x = 203,452,442.30
  5. Step 5: Solve for x
    x = 203,452,442.30/20,620.45
  6. Step 6: Final answer
    x = 9,866.54

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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.