Home / 18,844.26-28,211.37-14,121.36

Finding the Fourth Proportional to 18,844.26, 28,211.37 and 14,121.36

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Solution

The fourth proportional to 18,844.26, 28,211.37 and 14,121.36 is: 21,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.26 : 28,211.37 = 14,121.36 : x
  2. Step 2: Convert to fraction form
    18,844.26/28,211.37 = 14,121.36/x
  3. Step 3: Cross multiply
    18,844.26x = 28,211.37 × 14,121.36
  4. Step 4: Simplify right side
    18,844.26x = 398,382,911.86
  5. Step 5: Solve for x
    x = 398,382,911.86/18,844.26
  6. Step 6: Final answer
    x = 21,140.81

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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.