Home / 38,282.94-57,424.41-11,989.74

Finding the Fourth Proportional to 38,282.94, 57,424.41 and 11,989.74

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Solution

The fourth proportional to 38,282.94, 57,424.41 and 11,989.74 is: 17,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,282.94 : 57,424.41 = 11,989.74 : x
  2. Step 2: Convert to fraction form
    38,282.94/57,424.41 = 11,989.74/x
  3. Step 3: Cross multiply
    38,282.94x = 57,424.41 × 11,989.74
  4. Step 4: Simplify right side
    38,282.94x = 688,503,745.55
  5. Step 5: Solve for x
    x = 688,503,745.55/38,282.94
  6. Step 6: Final answer
    x = 17,984.61

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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.