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Finding the Fourth Proportional to 28,668.88, 43,011.96 and 8,949.52

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Solution

The fourth proportional to 28,668.88, 43,011.96 and 8,949.52 is: 13,426.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.88 : 43,011.96 = 8,949.52 : x
  2. Step 2: Convert to fraction form
    28,668.88/43,011.96 = 8,949.52/x
  3. Step 3: Cross multiply
    28,668.88x = 43,011.96 × 8,949.52
  4. Step 4: Simplify right side
    28,668.88x = 384,936,396.26
  5. Step 5: Solve for x
    x = 384,936,396.26/28,668.88
  6. Step 6: Final answer
    x = 13,426.98

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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.