Home / 38,086.78-57,132.84-11,788.06

Finding the Fourth Proportional to 38,086.78, 57,132.84 and 11,788.06

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Solution

The fourth proportional to 38,086.78, 57,132.84 and 11,788.06 is: 17,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,086.78 : 57,132.84 = 11,788.06 : x
  2. Step 2: Convert to fraction form
    38,086.78/57,132.84 = 11,788.06/x
  3. Step 3: Cross multiply
    38,086.78x = 57,132.84 × 11,788.06
  4. Step 4: Simplify right side
    38,086.78x = 673,485,345.89
  5. Step 5: Solve for x
    x = 673,485,345.89/38,086.78
  6. Step 6: Final answer
    x = 17,682.92

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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.