Home / 38,236.72-57,356-18,511.60

Finding the Fourth Proportional to 38,236.72, 57,356 and 18,511.60

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Solution

The fourth proportional to 38,236.72, 57,356 and 18,511.60 is: 27,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,236.72 : 57,356 = 18,511.60 : x
  2. Step 2: Convert to fraction form
    38,236.72/57,356 = 18,511.60/x
  3. Step 3: Cross multiply
    38,236.72x = 57,356 × 18,511.60
  4. Step 4: Simplify right side
    38,236.72x = 1,061,751,329.60
  5. Step 5: Solve for x
    x = 1,061,751,329.60/38,236.72
  6. Step 6: Final answer
    x = 27,767.85

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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.