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Finding the Fourth Proportional to 36,081.70, 49,793.81 and 20,166.19

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Solution

The fourth proportional to 36,081.70, 49,793.81 and 20,166.19 is: 27,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,081.70 : 49,793.81 = 20,166.19 : x
  2. Step 2: Convert to fraction form
    36,081.70/49,793.81 = 20,166.19/x
  3. Step 3: Cross multiply
    36,081.70x = 49,793.81 × 20,166.19
  4. Step 4: Simplify right side
    36,081.70x = 1,004,151,518.17
  5. Step 5: Solve for x
    x = 1,004,151,518.17/36,081.70
  6. Step 6: Final answer
    x = 27,829.94

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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.