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Finding the Fourth Proportional to 36,179.69, 49,928.12 and 21,082.71

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Solution

The fourth proportional to 36,179.69, 49,928.12 and 21,082.71 is: 29,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,179.69 : 49,928.12 = 21,082.71 : x
  2. Step 2: Convert to fraction form
    36,179.69/49,928.12 = 21,082.71/x
  3. Step 3: Cross multiply
    36,179.69x = 49,928.12 × 21,082.71
  4. Step 4: Simplify right side
    36,179.69x = 1,052,620,074.81
  5. Step 5: Solve for x
    x = 1,052,620,074.81/36,179.69
  6. Step 6: Final answer
    x = 29,094.23

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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.