Home / 38,381.79-57,589.97-20,825.31

Finding the Fourth Proportional to 38,381.79, 57,589.97 and 20,825.31

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Solution

The fourth proportional to 38,381.79, 57,589.97 and 20,825.31 is: 31,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.79 : 57,589.97 = 20,825.31 : x
  2. Step 2: Convert to fraction form
    38,381.79/57,589.97 = 20,825.31/x
  3. Step 3: Cross multiply
    38,381.79x = 57,589.97 × 20,825.31
  4. Step 4: Simplify right side
    38,381.79x = 1,199,328,874.01
  5. Step 5: Solve for x
    x = 1,199,328,874.01/38,381.79
  6. Step 6: Final answer
    x = 31,247.34

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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.