Home / 38,150.86-57,238.74-18,431.68

Finding the Fourth Proportional to 38,150.86, 57,238.74 and 18,431.68

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Solution

The fourth proportional to 38,150.86, 57,238.74 and 18,431.68 is: 27,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,150.86 : 57,238.74 = 18,431.68 : x
  2. Step 2: Convert to fraction form
    38,150.86/57,238.74 = 18,431.68/x
  3. Step 3: Cross multiply
    38,150.86x = 57,238.74 × 18,431.68
  4. Step 4: Simplify right side
    38,150.86x = 1,055,006,139.28
  5. Step 5: Solve for x
    x = 1,055,006,139.28/38,150.86
  6. Step 6: Final answer
    x = 27,653.53

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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.