Home / 34,392.60-51,540.30-21,205.80

Finding the Fourth Proportional to 34,392.60, 51,540.30 and 21,205.80

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Solution

The fourth proportional to 34,392.60, 51,540.30 and 21,205.80 is: 31,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,392.60 : 51,540.30 = 21,205.80 : x
  2. Step 2: Convert to fraction form
    34,392.60/51,540.30 = 21,205.80/x
  3. Step 3: Cross multiply
    34,392.60x = 51,540.30 × 21,205.80
  4. Step 4: Simplify right side
    34,392.60x = 1,092,953,293.74
  5. Step 5: Solve for x
    x = 1,092,953,293.74/34,392.60
  6. Step 6: Final answer
    x = 31,778.73

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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.