Home / 17,103.85-25,664.65-12,942.61

Finding the Fourth Proportional to 17,103.85, 25,664.65 and 12,942.61

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Solution

The fourth proportional to 17,103.85, 25,664.65 and 12,942.61 is: 19,420.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.85 : 25,664.65 = 12,942.61 : x
  2. Step 2: Convert to fraction form
    17,103.85/25,664.65 = 12,942.61/x
  3. Step 3: Cross multiply
    17,103.85x = 25,664.65 × 12,942.61
  4. Step 4: Simplify right side
    17,103.85x = 332,167,459.22
  5. Step 5: Solve for x
    x = 332,167,459.22/17,103.85
  6. Step 6: Final answer
    x = 19,420.63

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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.