Home / 20,088.97-27,719.82-11,136.43

Finding the Fourth Proportional to 20,088.97, 27,719.82 and 11,136.43

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Solution

The fourth proportional to 20,088.97, 27,719.82 and 11,136.43 is: 15,366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.97 : 27,719.82 = 11,136.43 : x
  2. Step 2: Convert to fraction form
    20,088.97/27,719.82 = 11,136.43/x
  3. Step 3: Cross multiply
    20,088.97x = 27,719.82 × 11,136.43
  4. Step 4: Simplify right side
    20,088.97x = 308,699,835.04
  5. Step 5: Solve for x
    x = 308,699,835.04/20,088.97
  6. Step 6: Final answer
    x = 15,366.63

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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.