Home / 38,131.80-57,203.22-11,838.68

Finding the Fourth Proportional to 38,131.80, 57,203.22 and 11,838.68

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Solution

The fourth proportional to 38,131.80, 57,203.22 and 11,838.68 is: 17,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,131.80 : 57,203.22 = 11,838.68 : x
  2. Step 2: Convert to fraction form
    38,131.80/57,203.22 = 11,838.68/x
  3. Step 3: Cross multiply
    38,131.80x = 57,203.22 × 11,838.68
  4. Step 4: Simplify right side
    38,131.80x = 677,210,616.55
  5. Step 5: Solve for x
    x = 677,210,616.55/38,131.80
  6. Step 6: Final answer
    x = 17,759.73

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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.