Home / 28,396.78-42,589.68-10,862.44

Finding the Fourth Proportional to 28,396.78, 42,589.68 and 10,862.44

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Solution

The fourth proportional to 28,396.78, 42,589.68 and 10,862.44 is: 16,291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396.78 : 42,589.68 = 10,862.44 : x
  2. Step 2: Convert to fraction form
    28,396.78/42,589.68 = 10,862.44/x
  3. Step 3: Cross multiply
    28,396.78x = 42,589.68 × 10,862.44
  4. Step 4: Simplify right side
    28,396.78x = 462,627,843.62
  5. Step 5: Solve for x
    x = 462,627,843.62/28,396.78
  6. Step 6: Final answer
    x = 16,291.56

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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.