Home / 19,383.66-29,078.28-6,231.66

Finding the Fourth Proportional to 19,383.66, 29,078.28 and 6,231.66

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Solution

The fourth proportional to 19,383.66, 29,078.28 and 6,231.66 is: 9,348.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,383.66 : 29,078.28 = 6,231.66 : x
  2. Step 2: Convert to fraction form
    19,383.66/29,078.28 = 6,231.66/x
  3. Step 3: Cross multiply
    19,383.66x = 29,078.28 × 6,231.66
  4. Step 4: Simplify right side
    19,383.66x = 181,205,954.34
  5. Step 5: Solve for x
    x = 181,205,954.34/19,383.66
  6. Step 6: Final answer
    x = 9,348.39

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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.