Home / 38,078.10-57,119.58-11,780.64

Finding the Fourth Proportional to 38,078.10, 57,119.58 and 11,780.64

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Solution

The fourth proportional to 38,078.10, 57,119.58 and 11,780.64 is: 17,671.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,078.10 : 57,119.58 = 11,780.64 : x
  2. Step 2: Convert to fraction form
    38,078.10/57,119.58 = 11,780.64/x
  3. Step 3: Cross multiply
    38,078.10x = 57,119.58 × 11,780.64
  4. Step 4: Simplify right side
    38,078.10x = 672,905,208.93
  5. Step 5: Solve for x
    x = 672,905,208.93/38,078.10
  6. Step 6: Final answer
    x = 17,671.71

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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.