Home / 20,121.17-27,768.42-11,624.85

Finding the Fourth Proportional to 20,121.17, 27,768.42 and 11,624.85

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Solution

The fourth proportional to 20,121.17, 27,768.42 and 11,624.85 is: 16,042.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.17 : 27,768.42 = 11,624.85 : x
  2. Step 2: Convert to fraction form
    20,121.17/27,768.42 = 11,624.85/x
  3. Step 3: Cross multiply
    20,121.17x = 27,768.42 × 11,624.85
  4. Step 4: Simplify right side
    20,121.17x = 322,803,717.24
  5. Step 5: Solve for x
    x = 322,803,717.24/20,121.17
  6. Step 6: Final answer
    x = 16,042.99

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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.