Home / 28,880.34-43,318.68-12,229.98

Finding the Fourth Proportional to 28,880.34, 43,318.68 and 12,229.98

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Solution

The fourth proportional to 28,880.34, 43,318.68 and 12,229.98 is: 18,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.34 : 43,318.68 = 12,229.98 : x
  2. Step 2: Convert to fraction form
    28,880.34/43,318.68 = 12,229.98/x
  3. Step 3: Cross multiply
    28,880.34x = 43,318.68 × 12,229.98
  4. Step 4: Simplify right side
    28,880.34x = 529,786,590.03
  5. Step 5: Solve for x
    x = 529,786,590.03/28,880.34
  6. Step 6: Final answer
    x = 18,344.20

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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.