Home / 20,141.36-30,212.49-5,351.77

Finding the Fourth Proportional to 20,141.36, 30,212.49 and 5,351.77

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Solution

The fourth proportional to 20,141.36, 30,212.49 and 5,351.77 is: 8,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.36 : 30,212.49 = 5,351.77 : x
  2. Step 2: Convert to fraction form
    20,141.36/30,212.49 = 5,351.77/x
  3. Step 3: Cross multiply
    20,141.36x = 30,212.49 × 5,351.77
  4. Step 4: Simplify right side
    20,141.36x = 161,690,355.44
  5. Step 5: Solve for x
    x = 161,690,355.44/20,141.36
  6. Step 6: Final answer
    x = 8,027.78

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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.