Home / 41,137.92-61,715.20-13,428.48

Finding the Fourth Proportional to 41,137.92, 61,715.20 and 13,428.48

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Solution

The fourth proportional to 41,137.92, 61,715.20 and 13,428.48 is: 20,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,137.92 : 61,715.20 = 13,428.48 : x
  2. Step 2: Convert to fraction form
    41,137.92/61,715.20 = 13,428.48/x
  3. Step 3: Cross multiply
    41,137.92x = 61,715.20 × 13,428.48
  4. Step 4: Simplify right side
    41,137.92x = 828,741,328.90
  5. Step 5: Solve for x
    x = 828,741,328.90/41,137.92
  6. Step 6: Final answer
    x = 20,145.44

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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.