Home / 20,836.52-31,292.43-19,167.57

Finding the Fourth Proportional to 20,836.52, 31,292.43 and 19,167.57

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Solution

The fourth proportional to 20,836.52, 31,292.43 and 19,167.57 is: 28,785.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.52 : 31,292.43 = 19,167.57 : x
  2. Step 2: Convert to fraction form
    20,836.52/31,292.43 = 19,167.57/x
  3. Step 3: Cross multiply
    20,836.52x = 31,292.43 × 19,167.57
  4. Step 4: Simplify right side
    20,836.52x = 599,799,770.62
  5. Step 5: Solve for x
    x = 599,799,770.62/20,836.52
  6. Step 6: Final answer
    x = 28,785.99

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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.