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Finding the Fourth Proportional to 29,256, 43,884 and 8,479.68

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Solution

The fourth proportional to 29,256, 43,884 and 8,479.68 is: 12,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,256 : 43,884 = 8,479.68 : x
  2. Step 2: Convert to fraction form
    29,256/43,884 = 8,479.68/x
  3. Step 3: Cross multiply
    29,256x = 43,884 × 8,479.68
  4. Step 4: Simplify right side
    29,256x = 372,122,277.12
  5. Step 5: Solve for x
    x = 372,122,277.12/29,256
  6. Step 6: Final answer
    x = 12,719.52

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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.