Home / 38,198.88-57,297.78-18,479.16

Finding the Fourth Proportional to 38,198.88, 57,297.78 and 18,479.16

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Solution

The fourth proportional to 38,198.88, 57,297.78 and 18,479.16 is: 27,718.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,198.88 : 57,297.78 = 18,479.16 : x
  2. Step 2: Convert to fraction form
    38,198.88/57,297.78 = 18,479.16/x
  3. Step 3: Cross multiply
    38,198.88x = 57,297.78 × 18,479.16
  4. Step 4: Simplify right side
    38,198.88x = 1,058,814,844.26
  5. Step 5: Solve for x
    x = 1,058,814,844.26/38,198.88
  6. Step 6: Final answer
    x = 27,718.48

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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.