Home / 28,336.62-42,470.07-12,524.61

Finding the Fourth Proportional to 28,336.62, 42,470.07 and 12,524.61

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Solution

The fourth proportional to 28,336.62, 42,470.07 and 12,524.61 is: 18,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.62 : 42,470.07 = 12,524.61 : x
  2. Step 2: Convert to fraction form
    28,336.62/42,470.07 = 12,524.61/x
  3. Step 3: Cross multiply
    28,336.62x = 42,470.07 × 12,524.61
  4. Step 4: Simplify right side
    28,336.62x = 531,921,063.42
  5. Step 5: Solve for x
    x = 531,921,063.42/28,336.62
  6. Step 6: Final answer
    x = 18,771.51

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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.