Home / 31,379.80-43,302.18-17,229.64

Finding the Fourth Proportional to 31,379.80, 43,302.18 and 17,229.64

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Solution

The fourth proportional to 31,379.80, 43,302.18 and 17,229.64 is: 23,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.80 : 43,302.18 = 17,229.64 : x
  2. Step 2: Convert to fraction form
    31,379.80/43,302.18 = 17,229.64/x
  3. Step 3: Cross multiply
    31,379.80x = 43,302.18 × 17,229.64
  4. Step 4: Simplify right side
    31,379.80x = 746,080,972.62
  5. Step 5: Solve for x
    x = 746,080,972.62/31,379.80
  6. Step 6: Final answer
    x = 23,775.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.