Home / 43,933.52-65,891.64-11,912

Finding the Fourth Proportional to 43,933.52, 65,891.64 and 11,912

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Solution

The fourth proportional to 43,933.52, 65,891.64 and 11,912 is: 17,865.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,933.52 : 65,891.64 = 11,912 : x
  2. Step 2: Convert to fraction form
    43,933.52/65,891.64 = 11,912/x
  3. Step 3: Cross multiply
    43,933.52x = 65,891.64 × 11,912
  4. Step 4: Simplify right side
    43,933.52x = 784,901,215.68
  5. Step 5: Solve for x
    x = 784,901,215.68/43,933.52
  6. Step 6: Final answer
    x = 17,865.66

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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.