Home / 13,427.28-20,139.37-3,567.36

Finding the Fourth Proportional to 13,427.28, 20,139.37 and 3,567.36

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Solution

The fourth proportional to 13,427.28, 20,139.37 and 3,567.36 is: 5,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.28 : 20,139.37 = 3,567.36 : x
  2. Step 2: Convert to fraction form
    13,427.28/20,139.37 = 3,567.36/x
  3. Step 3: Cross multiply
    13,427.28x = 20,139.37 × 3,567.36
  4. Step 4: Simplify right side
    13,427.28x = 71,844,382.96
  5. Step 5: Solve for x
    x = 71,844,382.96/13,427.28
  6. Step 6: Final answer
    x = 5,350.63

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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.