Home / 18,986.28-26,203.30-15,793.94

Finding the Fourth Proportional to 18,986.28, 26,203.30 and 15,793.94

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Solution

The fourth proportional to 18,986.28, 26,203.30 and 15,793.94 is: 21,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.28 : 26,203.30 = 15,793.94 : x
  2. Step 2: Convert to fraction form
    18,986.28/26,203.30 = 15,793.94/x
  3. Step 3: Cross multiply
    18,986.28x = 26,203.30 × 15,793.94
  4. Step 4: Simplify right side
    18,986.28x = 413,853,348.00
  5. Step 5: Solve for x
    x = 413,853,348.00/18,986.28
  6. Step 6: Final answer
    x = 21,797.50

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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.