Home / 40,940.20-61,410.28-18,424.56

Finding the Fourth Proportional to 40,940.20, 61,410.28 and 18,424.56

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Solution

The fourth proportional to 40,940.20, 61,410.28 and 18,424.56 is: 27,636.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,940.20 : 61,410.28 = 18,424.56 : x
  2. Step 2: Convert to fraction form
    40,940.20/61,410.28 = 18,424.56/x
  3. Step 3: Cross multiply
    40,940.20x = 61,410.28 × 18,424.56
  4. Step 4: Simplify right side
    40,940.20x = 1,131,457,388.48
  5. Step 5: Solve for x
    x = 1,131,457,388.48/40,940.20
  6. Step 6: Final answer
    x = 27,636.83

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1.5x scale

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.