Home / 37,120.83-51,221.16-21,201.90

Finding the Fourth Proportional to 37,120.83, 51,221.16 and 21,201.90

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Solution

The fourth proportional to 37,120.83, 51,221.16 and 21,201.90 is: 29,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,120.83 : 51,221.16 = 21,201.90 : x
  2. Step 2: Convert to fraction form
    37,120.83/51,221.16 = 21,201.90/x
  3. Step 3: Cross multiply
    37,120.83x = 51,221.16 × 21,201.90
  4. Step 4: Simplify right side
    37,120.83x = 1,085,985,912.20
  5. Step 5: Solve for x
    x = 1,085,985,912.20/37,120.83
  6. Step 6: Final answer
    x = 29,255.43

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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.