Home / 38,694.63-57,964.18-20,187.75

Finding the Fourth Proportional to 38,694.63, 57,964.18 and 20,187.75

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Solution

The fourth proportional to 38,694.63, 57,964.18 and 20,187.75 is: 30,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,694.63 : 57,964.18 = 20,187.75 : x
  2. Step 2: Convert to fraction form
    38,694.63/57,964.18 = 20,187.75/x
  3. Step 3: Cross multiply
    38,694.63x = 57,964.18 × 20,187.75
  4. Step 4: Simplify right side
    38,694.63x = 1,170,166,374.80
  5. Step 5: Solve for x
    x = 1,170,166,374.80/38,694.63
  6. Step 6: Final answer
    x = 30,241.05

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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.