Home / 20,189.66-27,873.32-13,497.44

Finding the Fourth Proportional to 20,189.66, 27,873.32 and 13,497.44

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Solution

The fourth proportional to 20,189.66, 27,873.32 and 13,497.44 is: 18,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.66 : 27,873.32 = 13,497.44 : x
  2. Step 2: Convert to fraction form
    20,189.66/27,873.32 = 13,497.44/x
  3. Step 3: Cross multiply
    20,189.66x = 27,873.32 × 13,497.44
  4. Step 4: Simplify right side
    20,189.66x = 376,218,257.45
  5. Step 5: Solve for x
    x = 376,218,257.45/20,189.66
  6. Step 6: Final answer
    x = 18,634.21

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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.