Home / 18,895.98-28,333.68-12,231.54

Finding the Fourth Proportional to 18,895.98, 28,333.68 and 12,231.54

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Solution

The fourth proportional to 18,895.98, 28,333.68 and 12,231.54 is: 18,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.98 : 28,333.68 = 12,231.54 : x
  2. Step 2: Convert to fraction form
    18,895.98/28,333.68 = 12,231.54/x
  3. Step 3: Cross multiply
    18,895.98x = 28,333.68 × 12,231.54
  4. Step 4: Simplify right side
    18,895.98x = 346,564,540.27
  5. Step 5: Solve for x
    x = 346,564,540.27/18,895.98
  6. Step 6: Final answer
    x = 18,340.65

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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.