Home / 13,427.78-20,143.30-3,567.24

Finding the Fourth Proportional to 13,427.78, 20,143.30 and 3,567.24

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Solution

The fourth proportional to 13,427.78, 20,143.30 and 3,567.24 is: 5,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.78 : 20,143.30 = 3,567.24 : x
  2. Step 2: Convert to fraction form
    13,427.78/20,143.30 = 3,567.24/x
  3. Step 3: Cross multiply
    13,427.78x = 20,143.30 × 3,567.24
  4. Step 4: Simplify right side
    13,427.78x = 71,855,985.49
  5. Step 5: Solve for x
    x = 71,855,985.49/13,427.78
  6. Step 6: Final answer
    x = 5,351.29

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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.