Home / 30,391.11-41,906.66-19,761.03

Finding the Fourth Proportional to 30,391.11, 41,906.66 and 19,761.03

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Solution

The fourth proportional to 30,391.11, 41,906.66 and 19,761.03 is: 27,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.11 : 41,906.66 = 19,761.03 : x
  2. Step 2: Convert to fraction form
    30,391.11/41,906.66 = 19,761.03/x
  3. Step 3: Cross multiply
    30,391.11x = 41,906.66 × 19,761.03
  4. Step 4: Simplify right side
    30,391.11x = 828,118,605.33
  5. Step 5: Solve for x
    x = 828,118,605.33/30,391.11
  6. Step 6: Final answer
    x = 27,248.72

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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.