Home / 38,121.36-57,184.56-13,163.82

Finding the Fourth Proportional to 38,121.36, 57,184.56 and 13,163.82

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Solution

The fourth proportional to 38,121.36, 57,184.56 and 13,163.82 is: 19,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.36 : 57,184.56 = 13,163.82 : x
  2. Step 2: Convert to fraction form
    38,121.36/57,184.56 = 13,163.82/x
  3. Step 3: Cross multiply
    38,121.36x = 57,184.56 × 13,163.82
  4. Step 4: Simplify right side
    38,121.36x = 752,767,254.62
  5. Step 5: Solve for x
    x = 752,767,254.62/38,121.36
  6. Step 6: Final answer
    x = 19,746.60

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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.