Home / 38,917-58,381.26-18,129.16

Finding the Fourth Proportional to 38,917, 58,381.26 and 18,129.16

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Solution

The fourth proportional to 38,917, 58,381.26 and 18,129.16 is: 27,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,917 : 58,381.26 = 18,129.16 : x
  2. Step 2: Convert to fraction form
    38,917/58,381.26 = 18,129.16/x
  3. Step 3: Cross multiply
    38,917x = 58,381.26 × 18,129.16
  4. Step 4: Simplify right side
    38,917x = 1,058,403,203.54
  5. Step 5: Solve for x
    x = 1,058,403,203.54/38,917
  6. Step 6: Final answer
    x = 27,196.42

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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.