Home / 27,129.41-40,704.83-8,410.92

Finding the Fourth Proportional to 27,129.41, 40,704.83 and 8,410.92

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Solution

The fourth proportional to 27,129.41, 40,704.83 and 8,410.92 is: 12,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.41 : 40,704.83 = 8,410.92 : x
  2. Step 2: Convert to fraction form
    27,129.41/40,704.83 = 8,410.92/x
  3. Step 3: Cross multiply
    27,129.41x = 40,704.83 × 8,410.92
  4. Step 4: Simplify right side
    27,129.41x = 342,365,134.55
  5. Step 5: Solve for x
    x = 342,365,134.55/27,129.41
  6. Step 6: Final answer
    x = 12,619.70

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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.