Home / 38,399.11-57,624.60-13,439.36

Finding the Fourth Proportional to 38,399.11, 57,624.60 and 13,439.36

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Solution

The fourth proportional to 38,399.11, 57,624.60 and 13,439.36 is: 20,168.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.11 : 57,624.60 = 13,439.36 : x
  2. Step 2: Convert to fraction form
    38,399.11/57,624.60 = 13,439.36/x
  3. Step 3: Cross multiply
    38,399.11x = 57,624.60 × 13,439.36
  4. Step 4: Simplify right side
    38,399.11x = 774,437,938.72
  5. Step 5: Solve for x
    x = 774,437,938.72/38,399.11
  6. Step 6: Final answer
    x = 20,168.12

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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.