Home / 20,087.73-27,721.44-11,013.84

Finding the Fourth Proportional to 20,087.73, 27,721.44 and 11,013.84

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Solution

The fourth proportional to 20,087.73, 27,721.44 and 11,013.84 is: 15,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.73 : 27,721.44 = 11,013.84 : x
  2. Step 2: Convert to fraction form
    20,087.73/27,721.44 = 11,013.84/x
  3. Step 3: Cross multiply
    20,087.73x = 27,721.44 × 11,013.84
  4. Step 4: Simplify right side
    20,087.73x = 305,319,504.73
  5. Step 5: Solve for x
    x = 305,319,504.73/20,087.73
  6. Step 6: Final answer
    x = 15,199.30

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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.