Home / 18,676.52-28,020.23-5,529.21

Finding the Fourth Proportional to 18,676.52, 28,020.23 and 5,529.21

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Solution

The fourth proportional to 18,676.52, 28,020.23 and 5,529.21 is: 8,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.52 : 28,020.23 = 5,529.21 : x
  2. Step 2: Convert to fraction form
    18,676.52/28,020.23 = 5,529.21/x
  3. Step 3: Cross multiply
    18,676.52x = 28,020.23 × 5,529.21
  4. Step 4: Simplify right side
    18,676.52x = 154,929,781.54
  5. Step 5: Solve for x
    x = 154,929,781.54/18,676.52
  6. Step 6: Final answer
    x = 8,295.43

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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.