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Finding the Fourth Proportional to 36,804.70, 55,207.96 and 13,431.12

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Solution

The fourth proportional to 36,804.70, 55,207.96 and 13,431.12 is: 20,147.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,804.70 : 55,207.96 = 13,431.12 : x
  2. Step 2: Convert to fraction form
    36,804.70/55,207.96 = 13,431.12/x
  3. Step 3: Cross multiply
    36,804.70x = 55,207.96 × 13,431.12
  4. Step 4: Simplify right side
    36,804.70x = 741,504,735.72
  5. Step 5: Solve for x
    x = 741,504,735.72/36,804.70
  6. Step 6: Final answer
    x = 20,147.01

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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.