Home / 38,231.43-57,347.15-11,938.43

Finding the Fourth Proportional to 38,231.43, 57,347.15 and 11,938.43

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Solution

The fourth proportional to 38,231.43, 57,347.15 and 11,938.43 is: 17,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,231.43 : 57,347.15 = 11,938.43 : x
  2. Step 2: Convert to fraction form
    38,231.43/57,347.15 = 11,938.43/x
  3. Step 3: Cross multiply
    38,231.43x = 57,347.15 × 11,938.43
  4. Step 4: Simplify right side
    38,231.43x = 684,634,589.55
  5. Step 5: Solve for x
    x = 684,634,589.55/38,231.43
  6. Step 6: Final answer
    x = 17,907.64

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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.