Home / 18,036.78-27,055.16-11,836.02

Finding the Fourth Proportional to 18,036.78, 27,055.16 and 11,836.02

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Solution

The fourth proportional to 18,036.78, 27,055.16 and 11,836.02 is: 17,754.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.78 : 27,055.16 = 11,836.02 : x
  2. Step 2: Convert to fraction form
    18,036.78/27,055.16 = 11,836.02/x
  3. Step 3: Cross multiply
    18,036.78x = 27,055.16 × 11,836.02
  4. Step 4: Simplify right side
    18,036.78x = 320,225,414.86
  5. Step 5: Solve for x
    x = 320,225,414.86/18,036.78
  6. Step 6: Final answer
    x = 17,754.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.