Home / 13,427.43-20,139.59-3,567.48

Finding the Fourth Proportional to 13,427.43, 20,139.59 and 3,567.48

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Solution

The fourth proportional to 13,427.43, 20,139.59 and 3,567.48 is: 5,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.43 : 20,139.59 = 3,567.48 : x
  2. Step 2: Convert to fraction form
    13,427.43/20,139.59 = 3,567.48/x
  3. Step 3: Cross multiply
    13,427.43x = 20,139.59 × 3,567.48
  4. Step 4: Simplify right side
    13,427.43x = 71,847,566.70
  5. Step 5: Solve for x
    x = 71,847,566.70/13,427.43
  6. Step 6: Final answer
    x = 5,350.81

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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.