Home / 19,282.38-28,927.84-8,198.58

Finding the Fourth Proportional to 19,282.38, 28,927.84 and 8,198.58

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Solution

The fourth proportional to 19,282.38, 28,927.84 and 8,198.58 is: 12,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,282.38 : 28,927.84 = 8,198.58 : x
  2. Step 2: Convert to fraction form
    19,282.38/28,927.84 = 8,198.58/x
  3. Step 3: Cross multiply
    19,282.38x = 28,927.84 × 8,198.58
  4. Step 4: Simplify right side
    19,282.38x = 237,167,210.47
  5. Step 5: Solve for x
    x = 237,167,210.47/19,282.38
  6. Step 6: Final answer
    x = 12,299.69

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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.