Home / 40,940.28-61,410.42-13,240.44

Finding the Fourth Proportional to 40,940.28, 61,410.42 and 13,240.44

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Solution

The fourth proportional to 40,940.28, 61,410.42 and 13,240.44 is: 19,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,940.28 : 61,410.42 = 13,240.44 : x
  2. Step 2: Convert to fraction form
    40,940.28/61,410.42 = 13,240.44/x
  3. Step 3: Cross multiply
    40,940.28x = 61,410.42 × 13,240.44
  4. Step 4: Simplify right side
    40,940.28x = 813,100,981.38
  5. Step 5: Solve for x
    x = 813,100,981.38/40,940.28
  6. Step 6: Final answer
    x = 19,860.66

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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.