Home / 38,783.80-57,912.97-30,796.68

Finding the Fourth Proportional to 38,783.80, 57,912.97 and 30,796.68

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Solution

The fourth proportional to 38,783.80, 57,912.97 and 30,796.68 is: 45,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,783.80 : 57,912.97 = 30,796.68 : x
  2. Step 2: Convert to fraction form
    38,783.80/57,912.97 = 30,796.68/x
  3. Step 3: Cross multiply
    38,783.80x = 57,912.97 × 30,796.68
  4. Step 4: Simplify right side
    38,783.80x = 1,783,527,204.94
  5. Step 5: Solve for x
    x = 1,783,527,204.94/38,783.80
  6. Step 6: Final answer
    x = 45,986.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.