Home / 20,153.14-27,807.06-11,198.80

Finding the Fourth Proportional to 20,153.14, 27,807.06 and 11,198.80

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Solution

The fourth proportional to 20,153.14, 27,807.06 and 11,198.80 is: 15,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.14 : 27,807.06 = 11,198.80 : x
  2. Step 2: Convert to fraction form
    20,153.14/27,807.06 = 11,198.80/x
  3. Step 3: Cross multiply
    20,153.14x = 27,807.06 × 11,198.80
  4. Step 4: Simplify right side
    20,153.14x = 311,405,703.53
  5. Step 5: Solve for x
    x = 311,405,703.53/20,153.14
  6. Step 6: Final answer
    x = 15,451.97

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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.