Home / 45,815.12-68,724.49-21,793.65

Finding the Fourth Proportional to 45,815.12, 68,724.49 and 21,793.65

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Solution

The fourth proportional to 45,815.12, 68,724.49 and 21,793.65 is: 32,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,815.12 : 68,724.49 = 21,793.65 : x
  2. Step 2: Convert to fraction form
    45,815.12/68,724.49 = 21,793.65/x
  3. Step 3: Cross multiply
    45,815.12x = 68,724.49 × 21,793.65
  4. Step 4: Simplify right side
    45,815.12x = 1,497,757,481.49
  5. Step 5: Solve for x
    x = 1,497,757,481.49/45,815.12
  6. Step 6: Final answer
    x = 32,691.34

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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.