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Finding the Fourth Proportional to 28,241.43, 42,336.22 and 9,760.47

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Solution

The fourth proportional to 28,241.43, 42,336.22 and 9,760.47 is: 14,631.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.43 : 42,336.22 = 9,760.47 : x
  2. Step 2: Convert to fraction form
    28,241.43/42,336.22 = 9,760.47/x
  3. Step 3: Cross multiply
    28,241.43x = 42,336.22 × 9,760.47
  4. Step 4: Simplify right side
    28,241.43x = 413,221,429.62
  5. Step 5: Solve for x
    x = 413,221,429.62/28,241.43
  6. Step 6: Final answer
    x = 14,631.75

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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.