Home / 28,198.38-38,911.10-16,865.58

Finding the Fourth Proportional to 28,198.38, 38,911.10 and 16,865.58

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Solution

The fourth proportional to 28,198.38, 38,911.10 and 16,865.58 is: 23,272.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.38 : 38,911.10 = 16,865.58 : x
  2. Step 2: Convert to fraction form
    28,198.38/38,911.10 = 16,865.58/x
  3. Step 3: Cross multiply
    28,198.38x = 38,911.10 × 16,865.58
  4. Step 4: Simplify right side
    28,198.38x = 656,258,269.94
  5. Step 5: Solve for x
    x = 656,258,269.94/28,198.38
  6. Step 6: Final answer
    x = 23,272.91

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1.5x scale

Why These Related Problems?

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