Home / 20,436.75-28,202.94-11,944.71

Finding the Fourth Proportional to 20,436.75, 28,202.94 and 11,944.71

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Solution

The fourth proportional to 20,436.75, 28,202.94 and 11,944.71 is: 16,483.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.75 : 28,202.94 = 11,944.71 : x
  2. Step 2: Convert to fraction form
    20,436.75/28,202.94 = 11,944.71/x
  3. Step 3: Cross multiply
    20,436.75x = 28,202.94 × 11,944.71
  4. Step 4: Simplify right side
    20,436.75x = 336,875,939.45
  5. Step 5: Solve for x
    x = 336,875,939.45/20,436.75
  6. Step 6: Final answer
    x = 16,483.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.