Home / 20,185.42-27,859.74-13,367.43

Finding the Fourth Proportional to 20,185.42, 27,859.74 and 13,367.43

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Solution

The fourth proportional to 20,185.42, 27,859.74 and 13,367.43 is: 18,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.42 : 27,859.74 = 13,367.43 : x
  2. Step 2: Convert to fraction form
    20,185.42/27,859.74 = 13,367.43/x
  3. Step 3: Cross multiply
    20,185.42x = 27,859.74 × 13,367.43
  4. Step 4: Simplify right side
    20,185.42x = 372,413,124.27
  5. Step 5: Solve for x
    x = 372,413,124.27/20,185.42
  6. Step 6: Final answer
    x = 18,449.61

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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.