Home / 38,128.36-57,195.06-13,170.82

Finding the Fourth Proportional to 38,128.36, 57,195.06 and 13,170.82

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Solution

The fourth proportional to 38,128.36, 57,195.06 and 13,170.82 is: 19,757.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128.36 : 57,195.06 = 13,170.82 : x
  2. Step 2: Convert to fraction form
    38,128.36/57,195.06 = 13,170.82/x
  3. Step 3: Cross multiply
    38,128.36x = 57,195.06 × 13,170.82
  4. Step 4: Simplify right side
    38,128.36x = 753,305,840.15
  5. Step 5: Solve for x
    x = 753,305,840.15/38,128.36
  6. Step 6: Final answer
    x = 19,757.10

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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.