Home / 29,857.20-41,199.48-20,439.60

Finding the Fourth Proportional to 29,857.20, 41,199.48 and 20,439.60

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Solution

The fourth proportional to 29,857.20, 41,199.48 and 20,439.60 is: 28,204.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,857.20 : 41,199.48 = 20,439.60 : x
  2. Step 2: Convert to fraction form
    29,857.20/41,199.48 = 20,439.60/x
  3. Step 3: Cross multiply
    29,857.20x = 41,199.48 × 20,439.60
  4. Step 4: Simplify right side
    29,857.20x = 842,100,891.41
  5. Step 5: Solve for x
    x = 842,100,891.41/29,857.20
  6. Step 6: Final answer
    x = 28,204.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.