Home / 20,338.74-30,517.38-12,035.02

Finding the Fourth Proportional to 20,338.74, 30,517.38 and 12,035.02

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Solution

The fourth proportional to 20,338.74, 30,517.38 and 12,035.02 is: 18,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.74 : 30,517.38 = 12,035.02 : x
  2. Step 2: Convert to fraction form
    20,338.74/30,517.38 = 12,035.02/x
  3. Step 3: Cross multiply
    20,338.74x = 30,517.38 × 12,035.02
  4. Step 4: Simplify right side
    20,338.74x = 367,277,278.65
  5. Step 5: Solve for x
    x = 367,277,278.65/20,338.74
  6. Step 6: Final answer
    x = 18,058.02

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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.