Home / 27,976.62-41,994.09-12,405.18

Finding the Fourth Proportional to 27,976.62, 41,994.09 and 12,405.18

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Solution

The fourth proportional to 27,976.62, 41,994.09 and 12,405.18 is: 18,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,976.62 : 41,994.09 = 12,405.18 : x
  2. Step 2: Convert to fraction form
    27,976.62/41,994.09 = 12,405.18/x
  3. Step 3: Cross multiply
    27,976.62x = 41,994.09 × 12,405.18
  4. Step 4: Simplify right side
    27,976.62x = 520,944,245.39
  5. Step 5: Solve for x
    x = 520,944,245.39/27,976.62
  6. Step 6: Final answer
    x = 18,620.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.