Home / 13,620.24-20,427.91-3,757.07

Finding the Fourth Proportional to 13,620.24, 20,427.91 and 3,757.07

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Solution

The fourth proportional to 13,620.24, 20,427.91 and 3,757.07 is: 5,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.24 : 20,427.91 = 3,757.07 : x
  2. Step 2: Convert to fraction form
    13,620.24/20,427.91 = 3,757.07/x
  3. Step 3: Cross multiply
    13,620.24x = 20,427.91 × 3,757.07
  4. Step 4: Simplify right side
    13,620.24x = 76,749,129.50
  5. Step 5: Solve for x
    x = 76,749,129.50/13,620.24
  6. Step 6: Final answer
    x = 5,634.93

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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.