Home / 19,286.62-28,926.68-5,432.38

Finding the Fourth Proportional to 19,286.62, 28,926.68 and 5,432.38

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Solution

The fourth proportional to 19,286.62, 28,926.68 and 5,432.38 is: 8,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.62 : 28,926.68 = 5,432.38 : x
  2. Step 2: Convert to fraction form
    19,286.62/28,926.68 = 5,432.38/x
  3. Step 3: Cross multiply
    19,286.62x = 28,926.68 × 5,432.38
  4. Step 4: Simplify right side
    19,286.62x = 157,140,717.90
  5. Step 5: Solve for x
    x = 157,140,717.90/19,286.62
  6. Step 6: Final answer
    x = 8,147.65

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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.