Home / 38,108.36-57,171.45-11,811.71

Finding the Fourth Proportional to 38,108.36, 57,171.45 and 11,811.71

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Solution

The fourth proportional to 38,108.36, 57,171.45 and 11,811.71 is: 17,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,108.36 : 57,171.45 = 11,811.71 : x
  2. Step 2: Convert to fraction form
    38,108.36/57,171.45 = 11,811.71/x
  3. Step 3: Cross multiply
    38,108.36x = 57,171.45 × 11,811.71
  4. Step 4: Simplify right side
    38,108.36x = 675,292,301.82
  5. Step 5: Solve for x
    x = 675,292,301.82/38,108.36
  6. Step 6: Final answer
    x = 17,720.32

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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.