Home / 20,212.52-30,332.94-11,318.60

Finding the Fourth Proportional to 20,212.52, 30,332.94 and 11,318.60

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Solution

The fourth proportional to 20,212.52, 30,332.94 and 11,318.60 is: 16,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.52 : 30,332.94 = 11,318.60 : x
  2. Step 2: Convert to fraction form
    20,212.52/30,332.94 = 11,318.60/x
  3. Step 3: Cross multiply
    20,212.52x = 30,332.94 × 11,318.60
  4. Step 4: Simplify right side
    20,212.52x = 343,326,414.68
  5. Step 5: Solve for x
    x = 343,326,414.68/20,212.52
  6. Step 6: Final answer
    x = 16,985.83

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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.