Home / 20,720.96-31,082.50-5,932.04

Finding the Fourth Proportional to 20,720.96, 31,082.50 and 5,932.04

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Solution

The fourth proportional to 20,720.96, 31,082.50 and 5,932.04 is: 8,898.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,720.96 : 31,082.50 = 5,932.04 : x
  2. Step 2: Convert to fraction form
    20,720.96/31,082.50 = 5,932.04/x
  3. Step 3: Cross multiply
    20,720.96x = 31,082.50 × 5,932.04
  4. Step 4: Simplify right side
    20,720.96x = 184,382,633.30
  5. Step 5: Solve for x
    x = 184,382,633.30/20,720.96
  6. Step 6: Final answer
    x = 8,898.36

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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.