Home / 13,826.27-20,739.49-3,438.02

Finding the Fourth Proportional to 13,826.27, 20,739.49 and 3,438.02

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Solution

The fourth proportional to 13,826.27, 20,739.49 and 3,438.02 is: 5,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.27 : 20,739.49 = 3,438.02 : x
  2. Step 2: Convert to fraction form
    13,826.27/20,739.49 = 3,438.02/x
  3. Step 3: Cross multiply
    13,826.27x = 20,739.49 × 3,438.02
  4. Step 4: Simplify right side
    13,826.27x = 71,302,837.56
  5. Step 5: Solve for x
    x = 71,302,837.56/13,826.27
  6. Step 6: Final answer
    x = 5,157.05

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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.