Home / 19,727.20-27,219.93-11,228.83

Finding the Fourth Proportional to 19,727.20, 27,219.93 and 11,228.83

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Solution

The fourth proportional to 19,727.20, 27,219.93 and 11,228.83 is: 15,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,727.20 : 27,219.93 = 11,228.83 : x
  2. Step 2: Convert to fraction form
    19,727.20/27,219.93 = 11,228.83/x
  3. Step 3: Cross multiply
    19,727.20x = 27,219.93 × 11,228.83
  4. Step 4: Simplify right side
    19,727.20x = 305,647,907.46
  5. Step 5: Solve for x
    x = 305,647,907.46/19,727.20
  6. Step 6: Final answer
    x = 15,493.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.