Home / 28,083.69-42,137-18,093.66

Finding the Fourth Proportional to 28,083.69, 42,137 and 18,093.66

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Solution

The fourth proportional to 28,083.69, 42,137 and 18,093.66 is: 27,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.69 : 42,137 = 18,093.66 : x
  2. Step 2: Convert to fraction form
    28,083.69/42,137 = 18,093.66/x
  3. Step 3: Cross multiply
    28,083.69x = 42,137 × 18,093.66
  4. Step 4: Simplify right side
    28,083.69x = 762,412,551.42
  5. Step 5: Solve for x
    x = 762,412,551.42/28,083.69
  6. Step 6: Final answer
    x = 27,147.88

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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.