Home / 38,431.97-57,645.87-11,778.05

Finding the Fourth Proportional to 38,431.97, 57,645.87 and 11,778.05

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Solution

The fourth proportional to 38,431.97, 57,645.87 and 11,778.05 is: 17,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,431.97 : 57,645.87 = 11,778.05 : x
  2. Step 2: Convert to fraction form
    38,431.97/57,645.87 = 11,778.05/x
  3. Step 3: Cross multiply
    38,431.97x = 57,645.87 × 11,778.05
  4. Step 4: Simplify right side
    38,431.97x = 678,955,650.92
  5. Step 5: Solve for x
    x = 678,955,650.92/38,431.97
  6. Step 6: Final answer
    x = 17,666.43

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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.