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Finding the Fourth Proportional to 33,903, 46,786.32 and 18,999

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Solution

The fourth proportional to 33,903, 46,786.32 and 18,999 is: 26,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,903 : 46,786.32 = 18,999 : x
  2. Step 2: Convert to fraction form
    33,903/46,786.32 = 18,999/x
  3. Step 3: Cross multiply
    33,903x = 46,786.32 × 18,999
  4. Step 4: Simplify right side
    33,903x = 888,893,293.68
  5. Step 5: Solve for x
    x = 888,893,293.68/33,903
  6. Step 6: Final answer
    x = 26,218.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.