Home / 20,121.49-27,768.94-11,623.97

Finding the Fourth Proportional to 20,121.49, 27,768.94 and 11,623.97

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Solution

The fourth proportional to 20,121.49, 27,768.94 and 11,623.97 is: 16,041.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.49 : 27,768.94 = 11,623.97 : x
  2. Step 2: Convert to fraction form
    20,121.49/27,768.94 = 11,623.97/x
  3. Step 3: Cross multiply
    20,121.49x = 27,768.94 × 11,623.97
  4. Step 4: Simplify right side
    20,121.49x = 322,785,215.71
  5. Step 5: Solve for x
    x = 322,785,215.71/20,121.49
  6. Step 6: Final answer
    x = 16,041.82

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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.