Home / 19,938.44-29,902.80-8,255

Finding the Fourth Proportional to 19,938.44, 29,902.80 and 8,255

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Solution

The fourth proportional to 19,938.44, 29,902.80 and 8,255 is: 12,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.44 : 29,902.80 = 8,255 : x
  2. Step 2: Convert to fraction form
    19,938.44/29,902.80 = 8,255/x
  3. Step 3: Cross multiply
    19,938.44x = 29,902.80 × 8,255
  4. Step 4: Simplify right side
    19,938.44x = 246,847,614
  5. Step 5: Solve for x
    x = 246,847,614/19,938.44
  6. Step 6: Final answer
    x = 12,380.49

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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.