Home / 20,694.42-30,992.22-11,910.87

Finding the Fourth Proportional to 20,694.42, 30,992.22 and 11,910.87

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Solution

The fourth proportional to 20,694.42, 30,992.22 and 11,910.87 is: 17,837.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.42 : 30,992.22 = 11,910.87 : x
  2. Step 2: Convert to fraction form
    20,694.42/30,992.22 = 11,910.87/x
  3. Step 3: Cross multiply
    20,694.42x = 30,992.22 × 11,910.87
  4. Step 4: Simplify right side
    20,694.42x = 369,144,303.43
  5. Step 5: Solve for x
    x = 369,144,303.43/20,694.42
  6. Step 6: Final answer
    x = 17,837.87

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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.