Home / 20,628.43-28,467.12-11,196.97

Finding the Fourth Proportional to 20,628.43, 28,467.12 and 11,196.97

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Solution

The fourth proportional to 20,628.43, 28,467.12 and 11,196.97 is: 15,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.43 : 28,467.12 = 11,196.97 : x
  2. Step 2: Convert to fraction form
    20,628.43/28,467.12 = 11,196.97/x
  3. Step 3: Cross multiply
    20,628.43x = 28,467.12 × 11,196.97
  4. Step 4: Simplify right side
    20,628.43x = 318,745,488.63
  5. Step 5: Solve for x
    x = 318,745,488.63/20,628.43
  6. Step 6: Final answer
    x = 15,451.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.