Home / 38,440.51-57,679.22-20,910.34

Finding the Fourth Proportional to 38,440.51, 57,679.22 and 20,910.34

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Solution

The fourth proportional to 38,440.51, 57,679.22 and 20,910.34 is: 31,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440.51 : 57,679.22 = 20,910.34 : x
  2. Step 2: Convert to fraction form
    38,440.51/57,679.22 = 20,910.34/x
  3. Step 3: Cross multiply
    38,440.51x = 57,679.22 × 20,910.34
  4. Step 4: Simplify right side
    38,440.51x = 1,206,092,101.13
  5. Step 5: Solve for x
    x = 1,206,092,101.13/38,440.51
  6. Step 6: Final answer
    x = 31,375.55

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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.