Home / 21,945.13-32,936.83-19,451.95

Finding the Fourth Proportional to 21,945.13, 32,936.83 and 19,451.95

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Solution

The fourth proportional to 21,945.13, 32,936.83 and 19,451.95 is: 29,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945.13 : 32,936.83 = 19,451.95 : x
  2. Step 2: Convert to fraction form
    21,945.13/32,936.83 = 19,451.95/x
  3. Step 3: Cross multiply
    21,945.13x = 32,936.83 × 19,451.95
  4. Step 4: Simplify right side
    21,945.13x = 640,685,439.35
  5. Step 5: Solve for x
    x = 640,685,439.35/21,945.13
  6. Step 6: Final answer
    x = 29,194.88

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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.