Home / 38,145.20-57,217.80-11,849.94

Finding the Fourth Proportional to 38,145.20, 57,217.80 and 11,849.94

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Solution

The fourth proportional to 38,145.20, 57,217.80 and 11,849.94 is: 17,774.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.20 : 57,217.80 = 11,849.94 : x
  2. Step 2: Convert to fraction form
    38,145.20/57,217.80 = 11,849.94/x
  3. Step 3: Cross multiply
    38,145.20x = 57,217.80 × 11,849.94
  4. Step 4: Simplify right side
    38,145.20x = 678,027,496.93
  5. Step 5: Solve for x
    x = 678,027,496.93/38,145.20
  6. Step 6: Final answer
    x = 17,774.91

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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.