Home / 20,088.51-27,719.22-11,136

Finding the Fourth Proportional to 20,088.51, 27,719.22 and 11,136

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Solution

The fourth proportional to 20,088.51, 27,719.22 and 11,136 is: 15,366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.51 : 27,719.22 = 11,136 : x
  2. Step 2: Convert to fraction form
    20,088.51/27,719.22 = 11,136/x
  3. Step 3: Cross multiply
    20,088.51x = 27,719.22 × 11,136
  4. Step 4: Simplify right side
    20,088.51x = 308,681,233.92
  5. Step 5: Solve for x
    x = 308,681,233.92/20,088.51
  6. Step 6: Final answer
    x = 15,366.06

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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.