Home / 17,117.52-25,676.20-5,431.65

Finding the Fourth Proportional to 17,117.52, 25,676.20 and 5,431.65

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Solution

The fourth proportional to 17,117.52, 25,676.20 and 5,431.65 is: 8,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,117.52 : 25,676.20 = 5,431.65 : x
  2. Step 2: Convert to fraction form
    17,117.52/25,676.20 = 5,431.65/x
  3. Step 3: Cross multiply
    17,117.52x = 25,676.20 × 5,431.65
  4. Step 4: Simplify right side
    17,117.52x = 139,464,131.73
  5. Step 5: Solve for x
    x = 139,464,131.73/17,117.52
  6. Step 6: Final answer
    x = 8,147.45

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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.