Home / 13,826.52-20,739.76-3,438.27

Finding the Fourth Proportional to 13,826.52, 20,739.76 and 3,438.27

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Solution

The fourth proportional to 13,826.52, 20,739.76 and 3,438.27 is: 5,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.52 : 20,739.76 = 3,438.27 : x
  2. Step 2: Convert to fraction form
    13,826.52/20,739.76 = 3,438.27/x
  3. Step 3: Cross multiply
    13,826.52x = 20,739.76 × 3,438.27
  4. Step 4: Simplify right side
    13,826.52x = 71,308,894.62
  5. Step 5: Solve for x
    x = 71,308,894.62/13,826.52
  6. Step 6: Final answer
    x = 5,157.40

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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.