Home / 41,121.81-61,663.26-18,928.62

Finding the Fourth Proportional to 41,121.81, 61,663.26 and 18,928.62

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Solution

The fourth proportional to 41,121.81, 61,663.26 and 18,928.62 is: 28,383.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,121.81 : 61,663.26 = 18,928.62 : x
  2. Step 2: Convert to fraction form
    41,121.81/61,663.26 = 18,928.62/x
  3. Step 3: Cross multiply
    41,121.81x = 61,663.26 × 18,928.62
  4. Step 4: Simplify right side
    41,121.81x = 1,167,200,416.50
  5. Step 5: Solve for x
    x = 1,167,200,416.50/41,121.81
  6. Step 6: Final answer
    x = 28,383.97

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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.