Home / 20,016.46-30,020.10-7,537.78

Finding the Fourth Proportional to 20,016.46, 30,020.10 and 7,537.78

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Solution

The fourth proportional to 20,016.46, 30,020.10 and 7,537.78 is: 11,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016.46 : 30,020.10 = 7,537.78 : x
  2. Step 2: Convert to fraction form
    20,016.46/30,020.10 = 7,537.78/x
  3. Step 3: Cross multiply
    20,016.46x = 30,020.10 × 7,537.78
  4. Step 4: Simplify right side
    20,016.46x = 226,284,909.38
  5. Step 5: Solve for x
    x = 226,284,909.38/20,016.46
  6. Step 6: Final answer
    x = 11,304.94

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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.