Home / 38,388-57,589.14-13,427.46

Finding the Fourth Proportional to 38,388, 57,589.14 and 13,427.46

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Solution

The fourth proportional to 38,388, 57,589.14 and 13,427.46 is: 20,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,388 : 57,589.14 = 13,427.46 : x
  2. Step 2: Convert to fraction form
    38,388/57,589.14 = 13,427.46/x
  3. Step 3: Cross multiply
    38,388x = 57,589.14 × 13,427.46
  4. Step 4: Simplify right side
    38,388x = 773,275,873.78
  5. Step 5: Solve for x
    x = 773,275,873.78/38,388
  6. Step 6: Final answer
    x = 20,143.69

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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.