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Finding the Fourth Proportional to 28,880.44, 43,327.98 and 8,103.96

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Solution

The fourth proportional to 28,880.44, 43,327.98 and 8,103.96 is: 12,157.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.44 : 43,327.98 = 8,103.96 : x
  2. Step 2: Convert to fraction form
    28,880.44/43,327.98 = 8,103.96/x
  3. Step 3: Cross multiply
    28,880.44x = 43,327.98 × 8,103.96
  4. Step 4: Simplify right side
    28,880.44x = 351,128,216.80
  5. Step 5: Solve for x
    x = 351,128,216.80/28,880.44
  6. Step 6: Final answer
    x = 12,157.99

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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.