Home / 13,427.88-20,140.24-3,567.91

Finding the Fourth Proportional to 13,427.88, 20,140.24 and 3,567.91

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Solution

The fourth proportional to 13,427.88, 20,140.24 and 3,567.91 is: 5,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.88 : 20,140.24 = 3,567.91 : x
  2. Step 2: Convert to fraction form
    13,427.88/20,140.24 = 3,567.91/x
  3. Step 3: Cross multiply
    13,427.88x = 20,140.24 × 3,567.91
  4. Step 4: Simplify right side
    13,427.88x = 71,858,563.70
  5. Step 5: Solve for x
    x = 71,858,563.70/13,427.88
  6. Step 6: Final answer
    x = 5,351.45

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1.5x scale

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.