Home / 19,956.54-27,540.21-11,004.40

Finding the Fourth Proportional to 19,956.54, 27,540.21 and 11,004.40

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Solution

The fourth proportional to 19,956.54, 27,540.21 and 11,004.40 is: 15,186.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.54 : 27,540.21 = 11,004.40 : x
  2. Step 2: Convert to fraction form
    19,956.54/27,540.21 = 11,004.40/x
  3. Step 3: Cross multiply
    19,956.54x = 27,540.21 × 11,004.40
  4. Step 4: Simplify right side
    19,956.54x = 303,063,486.92
  5. Step 5: Solve for x
    x = 303,063,486.92/19,956.54
  6. Step 6: Final answer
    x = 15,186.17

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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.