Home / 27,855.37-41,778.57-8,129.30

Finding the Fourth Proportional to 27,855.37, 41,778.57 and 8,129.30

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Solution

The fourth proportional to 27,855.37, 41,778.57 and 8,129.30 is: 12,192.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.37 : 41,778.57 = 8,129.30 : x
  2. Step 2: Convert to fraction form
    27,855.37/41,778.57 = 8,129.30/x
  3. Step 3: Cross multiply
    27,855.37x = 41,778.57 × 8,129.30
  4. Step 4: Simplify right side
    27,855.37x = 339,630,529.10
  5. Step 5: Solve for x
    x = 339,630,529.10/27,855.37
  6. Step 6: Final answer
    x = 12,192.64

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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.