Home / 41,221.88-61,837.36-13,135.40

Finding the Fourth Proportional to 41,221.88, 61,837.36 and 13,135.40

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Solution

The fourth proportional to 41,221.88, 61,837.36 and 13,135.40 is: 19,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,221.88 : 61,837.36 = 13,135.40 : x
  2. Step 2: Convert to fraction form
    41,221.88/61,837.36 = 13,135.40/x
  3. Step 3: Cross multiply
    41,221.88x = 61,837.36 × 13,135.40
  4. Step 4: Simplify right side
    41,221.88x = 812,258,458.54
  5. Step 5: Solve for x
    x = 812,258,458.54/41,221.88
  6. Step 6: Final answer
    x = 19,704.55

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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.