Home / 13,727.22-20,414.24-13,289.82

Finding the Fourth Proportional to 13,727.22, 20,414.24 and 13,289.82

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Solution

The fourth proportional to 13,727.22, 20,414.24 and 13,289.82 is: 19,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.22 : 20,414.24 = 13,289.82 : x
  2. Step 2: Convert to fraction form
    13,727.22/20,414.24 = 13,289.82/x
  3. Step 3: Cross multiply
    13,727.22x = 20,414.24 × 13,289.82
  4. Step 4: Simplify right side
    13,727.22x = 271,301,508.59
  5. Step 5: Solve for x
    x = 271,301,508.59/13,727.22
  6. Step 6: Final answer
    x = 19,763.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.