Home / 13,422.44-20,134.66-3,561.50

Finding the Fourth Proportional to 13,422.44, 20,134.66 and 3,561.50

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Solution

The fourth proportional to 13,422.44, 20,134.66 and 3,561.50 is: 5,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.44 : 20,134.66 = 3,561.50 : x
  2. Step 2: Convert to fraction form
    13,422.44/20,134.66 = 3,561.50/x
  3. Step 3: Cross multiply
    13,422.44x = 20,134.66 × 3,561.50
  4. Step 4: Simplify right side
    13,422.44x = 71,709,591.59
  5. Step 5: Solve for x
    x = 71,709,591.59/13,422.44
  6. Step 6: Final answer
    x = 5,342.52

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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.