Home / 20,089.82-27,724.07-11,136.76

Finding the Fourth Proportional to 20,089.82, 27,724.07 and 11,136.76

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Solution

The fourth proportional to 20,089.82, 27,724.07 and 11,136.76 is: 15,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.82 : 27,724.07 = 11,136.76 : x
  2. Step 2: Convert to fraction form
    20,089.82/27,724.07 = 11,136.76/x
  3. Step 3: Cross multiply
    20,089.82x = 27,724.07 × 11,136.76
  4. Step 4: Simplify right side
    20,089.82x = 308,756,272.34
  5. Step 5: Solve for x
    x = 308,756,272.34/20,089.82
  6. Step 6: Final answer
    x = 15,368.79

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Double scale
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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.