Home / 28,043.38-42,067.90-11,400.85

Finding the Fourth Proportional to 28,043.38, 42,067.90 and 11,400.85

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Solution

The fourth proportional to 28,043.38, 42,067.90 and 11,400.85 is: 17,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.38 : 42,067.90 = 11,400.85 : x
  2. Step 2: Convert to fraction form
    28,043.38/42,067.90 = 11,400.85/x
  3. Step 3: Cross multiply
    28,043.38x = 42,067.90 × 11,400.85
  4. Step 4: Simplify right side
    28,043.38x = 479,609,607.38
  5. Step 5: Solve for x
    x = 479,609,607.38/28,043.38
  6. Step 6: Final answer
    x = 17,102.42

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1.5x scale

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.