Home / 38,131.36-57,198.64-11,853.92

Finding the Fourth Proportional to 38,131.36, 57,198.64 and 11,853.92

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Solution

The fourth proportional to 38,131.36, 57,198.64 and 11,853.92 is: 17,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,131.36 : 57,198.64 = 11,853.92 : x
  2. Step 2: Convert to fraction form
    38,131.36/57,198.64 = 11,853.92/x
  3. Step 3: Cross multiply
    38,131.36x = 57,198.64 × 11,853.92
  4. Step 4: Simplify right side
    38,131.36x = 678,028,102.67
  5. Step 5: Solve for x
    x = 678,028,102.67/38,131.36
  6. Step 6: Final answer
    x = 17,781.38

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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.