Home / 36,107.12-54,165-12,728.72

Finding the Fourth Proportional to 36,107.12, 54,165 and 12,728.72

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Solution

The fourth proportional to 36,107.12, 54,165 and 12,728.72 is: 19,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,107.12 : 54,165 = 12,728.72 : x
  2. Step 2: Convert to fraction form
    36,107.12/54,165 = 12,728.72/x
  3. Step 3: Cross multiply
    36,107.12x = 54,165 × 12,728.72
  4. Step 4: Simplify right side
    36,107.12x = 689,451,118.80
  5. Step 5: Solve for x
    x = 689,451,118.80/36,107.12
  6. Step 6: Final answer
    x = 19,094.60

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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.