Home / 19,921.44-29,877.30-8,238

Finding the Fourth Proportional to 19,921.44, 29,877.30 and 8,238

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Solution

The fourth proportional to 19,921.44, 29,877.30 and 8,238 is: 12,354.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.44 : 29,877.30 = 8,238 : x
  2. Step 2: Convert to fraction form
    19,921.44/29,877.30 = 8,238/x
  3. Step 3: Cross multiply
    19,921.44x = 29,877.30 × 8,238
  4. Step 4: Simplify right side
    19,921.44x = 246,129,197.40
  5. Step 5: Solve for x
    x = 246,129,197.40/19,921.44
  6. Step 6: Final answer
    x = 12,354.99

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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.