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Finding the Fourth Proportional to 28,993.85, 43,494.55 and 8,217.89

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Solution

The fourth proportional to 28,993.85, 43,494.55 and 8,217.89 is: 12,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.85 : 43,494.55 = 8,217.89 : x
  2. Step 2: Convert to fraction form
    28,993.85/43,494.55 = 8,217.89/x
  3. Step 3: Cross multiply
    28,993.85x = 43,494.55 × 8,217.89
  4. Step 4: Simplify right side
    28,993.85x = 357,433,189.48
  5. Step 5: Solve for x
    x = 357,433,189.48/28,993.85
  6. Step 6: Final answer
    x = 12,327.90

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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.