Home / 18,882.08-28,293.60-11,942

Finding the Fourth Proportional to 18,882.08, 28,293.60 and 11,942

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Solution

The fourth proportional to 18,882.08, 28,293.60 and 11,942 is: 17,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.08 : 28,293.60 = 11,942 : x
  2. Step 2: Convert to fraction form
    18,882.08/28,293.60 = 11,942/x
  3. Step 3: Cross multiply
    18,882.08x = 28,293.60 × 11,942
  4. Step 4: Simplify right side
    18,882.08x = 337,882,171.20
  5. Step 5: Solve for x
    x = 337,882,171.20/18,882.08
  6. Step 6: Final answer
    x = 17,894.33

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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.