Home / 20,287.14-27,996.48-11,213.63

Finding the Fourth Proportional to 20,287.14, 27,996.48 and 11,213.63

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Solution

The fourth proportional to 20,287.14, 27,996.48 and 11,213.63 is: 15,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.14 : 27,996.48 = 11,213.63 : x
  2. Step 2: Convert to fraction form
    20,287.14/27,996.48 = 11,213.63/x
  3. Step 3: Cross multiply
    20,287.14x = 27,996.48 × 11,213.63
  4. Step 4: Simplify right side
    20,287.14x = 313,942,028.04
  5. Step 5: Solve for x
    x = 313,942,028.04/20,287.14
  6. Step 6: Final answer
    x = 15,474.93

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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.