Home / 20,178.74-27,843.66-11,226.35

Finding the Fourth Proportional to 20,178.74, 27,843.66 and 11,226.35

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Solution

The fourth proportional to 20,178.74, 27,843.66 and 11,226.35 is: 15,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.74 : 27,843.66 = 11,226.35 : x
  2. Step 2: Convert to fraction form
    20,178.74/27,843.66 = 11,226.35/x
  3. Step 3: Cross multiply
    20,178.74x = 27,843.66 × 11,226.35
  4. Step 4: Simplify right side
    20,178.74x = 312,582,672.44
  5. Step 5: Solve for x
    x = 312,582,672.44/20,178.74
  6. Step 6: Final answer
    x = 15,490.69

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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.