Home / 38,131.11-57,205.75-13,171.37

Finding the Fourth Proportional to 38,131.11, 57,205.75 and 13,171.37

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Solution

The fourth proportional to 38,131.11, 57,205.75 and 13,171.37 is: 19,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,131.11 : 57,205.75 = 13,171.37 : x
  2. Step 2: Convert to fraction form
    38,131.11/57,205.75 = 13,171.37/x
  3. Step 3: Cross multiply
    38,131.11x = 57,205.75 × 13,171.37
  4. Step 4: Simplify right side
    38,131.11x = 753,478,099.38
  5. Step 5: Solve for x
    x = 753,478,099.38/38,131.11
  6. Step 6: Final answer
    x = 19,760.19

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1.5x scale

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.