Home / 36,921.85-50,951.50-21,005.96

Finding the Fourth Proportional to 36,921.85, 50,951.50 and 21,005.96

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Solution

The fourth proportional to 36,921.85, 50,951.50 and 21,005.96 is: 28,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.85 : 50,951.50 = 21,005.96 : x
  2. Step 2: Convert to fraction form
    36,921.85/50,951.50 = 21,005.96/x
  3. Step 3: Cross multiply
    36,921.85x = 50,951.50 × 21,005.96
  4. Step 4: Simplify right side
    36,921.85x = 1,070,284,863.67
  5. Step 5: Solve for x
    x = 1,070,284,863.67/36,921.85
  6. Step 6: Final answer
    x = 28,987.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.