Home / 25,458.80-38,153.57-19,213.61

Finding the Fourth Proportional to 25,458.80, 38,153.57 and 19,213.61

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Solution

The fourth proportional to 25,458.80, 38,153.57 and 19,213.61 is: 28,794.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.80 : 38,153.57 = 19,213.61 : x
  2. Step 2: Convert to fraction form
    25,458.80/38,153.57 = 19,213.61/x
  3. Step 3: Cross multiply
    25,458.80x = 38,153.57 × 19,213.61
  4. Step 4: Simplify right side
    25,458.80x = 733,067,527.25
  5. Step 5: Solve for x
    x = 733,067,527.25/25,458.80
  6. Step 6: Final answer
    x = 28,794.27

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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.