Home / 36,161.64-54,240.84-12,788.28

Finding the Fourth Proportional to 36,161.64, 54,240.84 and 12,788.28

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Solution

The fourth proportional to 36,161.64, 54,240.84 and 12,788.28 is: 19,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,161.64 : 54,240.84 = 12,788.28 : x
  2. Step 2: Convert to fraction form
    36,161.64/54,240.84 = 12,788.28/x
  3. Step 3: Cross multiply
    36,161.64x = 54,240.84 × 12,788.28
  4. Step 4: Simplify right side
    36,161.64x = 693,647,049.36
  5. Step 5: Solve for x
    x = 693,647,049.36/36,161.64
  6. Step 6: Final answer
    x = 19,181.85

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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.