Home / 41,121.31-61,662.51-18,928.12

Finding the Fourth Proportional to 41,121.31, 61,662.51 and 18,928.12

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Solution

The fourth proportional to 41,121.31, 61,662.51 and 18,928.12 is: 28,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,121.31 : 61,662.51 = 18,928.12 : x
  2. Step 2: Convert to fraction form
    41,121.31/61,662.51 = 18,928.12/x
  3. Step 3: Cross multiply
    41,121.31x = 61,662.51 × 18,928.12
  4. Step 4: Simplify right side
    41,121.31x = 1,167,155,388.78
  5. Step 5: Solve for x
    x = 1,167,155,388.78/41,121.31
  6. Step 6: Final answer
    x = 28,383.22

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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.