Home / 23,146.89-34,706.96-20,379.12

Finding the Fourth Proportional to 23,146.89, 34,706.96 and 20,379.12

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Solution

The fourth proportional to 23,146.89, 34,706.96 and 20,379.12 is: 30,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,146.89 : 34,706.96 = 20,379.12 : x
  2. Step 2: Convert to fraction form
    23,146.89/34,706.96 = 20,379.12/x
  3. Step 3: Cross multiply
    23,146.89x = 34,706.96 × 20,379.12
  4. Step 4: Simplify right side
    23,146.89x = 707,297,302.68
  5. Step 5: Solve for x
    x = 707,297,302.68/23,146.89
  6. Step 6: Final answer
    x = 30,556.90

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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.