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Finding the Fourth Proportional to 28,992.75, 43,496.42 and 8,216.25

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Solution

The fourth proportional to 28,992.75, 43,496.42 and 8,216.25 is: 12,326.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.75 : 43,496.42 = 8,216.25 : x
  2. Step 2: Convert to fraction form
    28,992.75/43,496.42 = 8,216.25/x
  3. Step 3: Cross multiply
    28,992.75x = 43,496.42 × 8,216.25
  4. Step 4: Simplify right side
    28,992.75x = 357,377,419.74
  5. Step 5: Solve for x
    x = 357,377,419.74/28,992.75
  6. Step 6: Final answer
    x = 12,326.44

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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.