Home / 30,375.64-41,894.67-19,768.69

Finding the Fourth Proportional to 30,375.64, 41,894.67 and 19,768.69

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Solution

The fourth proportional to 30,375.64, 41,894.67 and 19,768.69 is: 27,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,375.64 : 41,894.67 = 19,768.69 : x
  2. Step 2: Convert to fraction form
    30,375.64/41,894.67 = 19,768.69/x
  3. Step 3: Cross multiply
    30,375.64x = 41,894.67 × 19,768.69
  4. Step 4: Simplify right side
    30,375.64x = 828,202,743.88
  5. Step 5: Solve for x
    x = 828,202,743.88/30,375.64
  6. Step 6: Final answer
    x = 27,265.36

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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.