Home / 19,922.44-29,878.80-8,239

Finding the Fourth Proportional to 19,922.44, 29,878.80 and 8,239

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Solution

The fourth proportional to 19,922.44, 29,878.80 and 8,239 is: 12,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.44 : 29,878.80 = 8,239 : x
  2. Step 2: Convert to fraction form
    19,922.44/29,878.80 = 8,239/x
  3. Step 3: Cross multiply
    19,922.44x = 29,878.80 × 8,239
  4. Step 4: Simplify right side
    19,922.44x = 246,171,433.20
  5. Step 5: Solve for x
    x = 246,171,433.20/19,922.44
  6. Step 6: Final answer
    x = 12,356.49

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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.