Home / 19,277.38-28,947.46-11,928.66

Finding the Fourth Proportional to 19,277.38, 28,947.46 and 11,928.66

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Solution

The fourth proportional to 19,277.38, 28,947.46 and 11,928.66 is: 17,912.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,277.38 : 28,947.46 = 11,928.66 : x
  2. Step 2: Convert to fraction form
    19,277.38/28,947.46 = 11,928.66/x
  3. Step 3: Cross multiply
    19,277.38x = 28,947.46 × 11,928.66
  4. Step 4: Simplify right side
    19,277.38x = 345,304,408.20
  5. Step 5: Solve for x
    x = 345,304,408.20/19,277.38
  6. Step 6: Final answer
    x = 17,912.41

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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.