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Finding the Fourth Proportional to 22,479.44, 33,710.36 and 8,431.79

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Solution

The fourth proportional to 22,479.44, 33,710.36 and 8,431.79 is: 12,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,479.44 : 33,710.36 = 8,431.79 : x
  2. Step 2: Convert to fraction form
    22,479.44/33,710.36 = 8,431.79/x
  3. Step 3: Cross multiply
    22,479.44x = 33,710.36 × 8,431.79
  4. Step 4: Simplify right side
    22,479.44x = 284,238,465.63
  5. Step 5: Solve for x
    x = 284,238,465.63/22,479.44
  6. Step 6: Final answer
    x = 12,644.38

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1.5x scale

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.