Home / 20,713.24-31,081.74-7,563.88

Finding the Fourth Proportional to 20,713.24, 31,081.74 and 7,563.88

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Solution

The fourth proportional to 20,713.24, 31,081.74 and 7,563.88 is: 11,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.24 : 31,081.74 = 7,563.88 : x
  2. Step 2: Convert to fraction form
    20,713.24/31,081.74 = 7,563.88/x
  3. Step 3: Cross multiply
    20,713.24x = 31,081.74 × 7,563.88
  4. Step 4: Simplify right side
    20,713.24x = 235,098,551.55
  5. Step 5: Solve for x
    x = 235,098,551.55/20,713.24
  6. Step 6: Final answer
    x = 11,350.16

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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.