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Finding the Fourth Proportional to 28,979.25, 43,468.88 and 8,202.75

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Solution

The fourth proportional to 28,979.25, 43,468.88 and 8,202.75 is: 12,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.25 : 43,468.88 = 8,202.75 : x
  2. Step 2: Convert to fraction form
    28,979.25/43,468.88 = 8,202.75/x
  3. Step 3: Cross multiply
    28,979.25x = 43,468.88 × 8,202.75
  4. Step 4: Simplify right side
    28,979.25x = 356,564,314.41
  5. Step 5: Solve for x
    x = 356,564,314.41/28,979.25
  6. Step 6: Final answer
    x = 12,304.13

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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.