Home / 38,286.94-57,430.41-11,993.74

Finding the Fourth Proportional to 38,286.94, 57,430.41 and 11,993.74

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Solution

The fourth proportional to 38,286.94, 57,430.41 and 11,993.74 is: 17,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.94 : 57,430.41 = 11,993.74 : x
  2. Step 2: Convert to fraction form
    38,286.94/57,430.41 = 11,993.74/x
  3. Step 3: Cross multiply
    38,286.94x = 57,430.41 × 11,993.74
  4. Step 4: Simplify right side
    38,286.94x = 688,805,405.63
  5. Step 5: Solve for x
    x = 688,805,405.63/38,286.94
  6. Step 6: Final answer
    x = 17,990.61

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Similar ratio
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1.5x scale

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.