Home / 38,143.22-57,141.03-21,452.54

Finding the Fourth Proportional to 38,143.22, 57,141.03 and 21,452.54

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Solution

The fourth proportional to 38,143.22, 57,141.03 and 21,452.54 is: 32,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.22 : 57,141.03 = 21,452.54 : x
  2. Step 2: Convert to fraction form
    38,143.22/57,141.03 = 21,452.54/x
  3. Step 3: Cross multiply
    38,143.22x = 57,141.03 × 21,452.54
  4. Step 4: Simplify right side
    38,143.22x = 1,225,820,231.72
  5. Step 5: Solve for x
    x = 1,225,820,231.72/38,143.22
  6. Step 6: Final answer
    x = 32,137.30

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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.