Home / 11,431.16-17,148.78-4,039.91

Finding the Fourth Proportional to 11,431.16, 17,148.78 and 4,039.91

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Solution

The fourth proportional to 11,431.16, 17,148.78 and 4,039.91 is: 6,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.16 : 17,148.78 = 4,039.91 : x
  2. Step 2: Convert to fraction form
    11,431.16/17,148.78 = 4,039.91/x
  3. Step 3: Cross multiply
    11,431.16x = 17,148.78 × 4,039.91
  4. Step 4: Simplify right side
    11,431.16x = 69,279,442.07
  5. Step 5: Solve for x
    x = 69,279,442.07/11,431.16
  6. Step 6: Final answer
    x = 6,060.58

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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.