Home / 43,843.10-65,738.36-21,309.39

Finding the Fourth Proportional to 43,843.10, 65,738.36 and 21,309.39

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Solution

The fourth proportional to 43,843.10, 65,738.36 and 21,309.39 is: 31,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,843.10 : 65,738.36 = 21,309.39 : x
  2. Step 2: Convert to fraction form
    43,843.10/65,738.36 = 21,309.39/x
  3. Step 3: Cross multiply
    43,843.10x = 65,738.36 × 21,309.39
  4. Step 4: Simplify right side
    43,843.10x = 1,400,844,491.17
  5. Step 5: Solve for x
    x = 1,400,844,491.17/43,843.10
  6. Step 6: Final answer
    x = 31,951.31

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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.