Home / 22,286.88-30,754.68-12,215.34

Finding the Fourth Proportional to 22,286.88, 30,754.68 and 12,215.34

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Solution

The fourth proportional to 22,286.88, 30,754.68 and 12,215.34 is: 16,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,286.88 : 30,754.68 = 12,215.34 : x
  2. Step 2: Convert to fraction form
    22,286.88/30,754.68 = 12,215.34/x
  3. Step 3: Cross multiply
    22,286.88x = 30,754.68 × 12,215.34
  4. Step 4: Simplify right side
    22,286.88x = 375,678,872.79
  5. Step 5: Solve for x
    x = 375,678,872.79/22,286.88
  6. Step 6: Final answer
    x = 16,856.50

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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.