Home / 26,690.46-36,836.52-15,359.78

Finding the Fourth Proportional to 26,690.46, 36,836.52 and 15,359.78

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Solution

The fourth proportional to 26,690.46, 36,836.52 and 15,359.78 is: 21,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.46 : 36,836.52 = 15,359.78 : x
  2. Step 2: Convert to fraction form
    26,690.46/36,836.52 = 15,359.78/x
  3. Step 3: Cross multiply
    26,690.46x = 36,836.52 × 15,359.78
  4. Step 4: Simplify right side
    26,690.46x = 565,800,756.85
  5. Step 5: Solve for x
    x = 565,800,756.85/26,690.46
  6. Step 6: Final answer
    x = 21,198.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.