Home / 38,178.87-57,238.57-18,178.07

Finding the Fourth Proportional to 38,178.87, 57,238.57 and 18,178.07

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Solution

The fourth proportional to 38,178.87, 57,238.57 and 18,178.07 is: 27,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.87 : 57,238.57 = 18,178.07 : x
  2. Step 2: Convert to fraction form
    38,178.87/57,238.57 = 18,178.07/x
  3. Step 3: Cross multiply
    38,178.87x = 57,238.57 × 18,178.07
  4. Step 4: Simplify right side
    38,178.87x = 1,040,486,841.78
  5. Step 5: Solve for x
    x = 1,040,486,841.78/38,178.87
  6. Step 6: Final answer
    x = 27,252.95

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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.