Home / 26,861.80-40,254.30-19,786.60

Finding the Fourth Proportional to 26,861.80, 40,254.30 and 19,786.60

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Solution

The fourth proportional to 26,861.80, 40,254.30 and 19,786.60 is: 29,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,861.80 : 40,254.30 = 19,786.60 : x
  2. Step 2: Convert to fraction form
    26,861.80/40,254.30 = 19,786.60/x
  3. Step 3: Cross multiply
    26,861.80x = 40,254.30 × 19,786.60
  4. Step 4: Simplify right side
    26,861.80x = 796,495,732.38
  5. Step 5: Solve for x
    x = 796,495,732.38/26,861.80
  6. Step 6: Final answer
    x = 29,651.61

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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.