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Finding the Fourth Proportional to 36,977, 55,443.32 and 16,961.40

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Solution

The fourth proportional to 36,977, 55,443.32 and 16,961.40 is: 25,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,977 : 55,443.32 = 16,961.40 : x
  2. Step 2: Convert to fraction form
    36,977/55,443.32 = 16,961.40/x
  3. Step 3: Cross multiply
    36,977x = 55,443.32 × 16,961.40
  4. Step 4: Simplify right side
    36,977x = 940,396,327.85
  5. Step 5: Solve for x
    x = 940,396,327.85/36,977
  6. Step 6: Final answer
    x = 25,431.93

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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.