Home / 38,076.78-57,117.84-11,778.06

Finding the Fourth Proportional to 38,076.78, 57,117.84 and 11,778.06

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Solution

The fourth proportional to 38,076.78, 57,117.84 and 11,778.06 is: 17,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,076.78 : 57,117.84 = 11,778.06 : x
  2. Step 2: Convert to fraction form
    38,076.78/57,117.84 = 11,778.06/x
  3. Step 3: Cross multiply
    38,076.78x = 57,117.84 × 11,778.06
  4. Step 4: Simplify right side
    38,076.78x = 672,737,346.59
  5. Step 5: Solve for x
    x = 672,737,346.59/38,076.78
  6. Step 6: Final answer
    x = 17,667.92

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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.