Home / 20,109.56-30,125.10-13,163

Finding the Fourth Proportional to 20,109.56, 30,125.10 and 13,163

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Solution

The fourth proportional to 20,109.56, 30,125.10 and 13,163 is: 19,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.56 : 30,125.10 = 13,163 : x
  2. Step 2: Convert to fraction form
    20,109.56/30,125.10 = 13,163/x
  3. Step 3: Cross multiply
    20,109.56x = 30,125.10 × 13,163
  4. Step 4: Simplify right side
    20,109.56x = 396,536,691.30
  5. Step 5: Solve for x
    x = 396,536,691.30/20,109.56
  6. Step 6: Final answer
    x = 19,718.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.