Home / 38,191.61-57,252.79-20,640.94

Finding the Fourth Proportional to 38,191.61, 57,252.79 and 20,640.94

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Solution

The fourth proportional to 38,191.61, 57,252.79 and 20,640.94 is: 30,942.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,191.61 : 57,252.79 = 20,640.94 : x
  2. Step 2: Convert to fraction form
    38,191.61/57,252.79 = 20,640.94/x
  3. Step 3: Cross multiply
    38,191.61x = 57,252.79 × 20,640.94
  4. Step 4: Simplify right side
    38,191.61x = 1,181,751,208.49
  5. Step 5: Solve for x
    x = 1,181,751,208.49/38,191.61
  6. Step 6: Final answer
    x = 30,942.69

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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.