Home / 27,428.17-41,143.86-7,708.27

Finding the Fourth Proportional to 27,428.17, 41,143.86 and 7,708.27

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Solution

The fourth proportional to 27,428.17, 41,143.86 and 7,708.27 is: 11,562.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,428.17 : 41,143.86 = 7,708.27 : x
  2. Step 2: Convert to fraction form
    27,428.17/41,143.86 = 7,708.27/x
  3. Step 3: Cross multiply
    27,428.17x = 41,143.86 × 7,708.27
  4. Step 4: Simplify right side
    27,428.17x = 317,147,981.72
  5. Step 5: Solve for x
    x = 317,147,981.72/27,428.17
  6. Step 6: Final answer
    x = 11,562.86

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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.