Home / 69,013.06-103,519.62-21,631.85

Finding the Fourth Proportional to 69,013.06, 103,519.62 and 21,631.85

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Solution

The fourth proportional to 69,013.06, 103,519.62 and 21,631.85 is: 32,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,013.06 : 103,519.62 = 21,631.85 : x
  2. Step 2: Convert to fraction form
    69,013.06/103,519.62 = 21,631.85/x
  3. Step 3: Cross multiply
    69,013.06x = 103,519.62 × 21,631.85
  4. Step 4: Simplify right side
    69,013.06x = 2,239,320,374.30
  5. Step 5: Solve for x
    x = 2,239,320,374.30/69,013.06
  6. Step 6: Final answer
    x = 32,447.78

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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.