Home / 34,540.88-51,811.34-13,778.96

Finding the Fourth Proportional to 34,540.88, 51,811.34 and 13,778.96

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Solution

The fourth proportional to 34,540.88, 51,811.34 and 13,778.96 is: 20,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,540.88 : 51,811.34 = 13,778.96 : x
  2. Step 2: Convert to fraction form
    34,540.88/51,811.34 = 13,778.96/x
  3. Step 3: Cross multiply
    34,540.88x = 51,811.34 × 13,778.96
  4. Step 4: Simplify right side
    34,540.88x = 713,906,053.45
  5. Step 5: Solve for x
    x = 713,906,053.45/34,540.88
  6. Step 6: Final answer
    x = 20,668.44

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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.