Home / 29,048.40-43,540.20-12,405.60

Finding the Fourth Proportional to 29,048.40, 43,540.20 and 12,405.60

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Solution

The fourth proportional to 29,048.40, 43,540.20 and 12,405.60 is: 18,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,048.40 : 43,540.20 = 12,405.60 : x
  2. Step 2: Convert to fraction form
    29,048.40/43,540.20 = 12,405.60/x
  3. Step 3: Cross multiply
    29,048.40x = 43,540.20 × 12,405.60
  4. Step 4: Simplify right side
    29,048.40x = 540,142,305.12
  5. Step 5: Solve for x
    x = 540,142,305.12/29,048.40
  6. Step 6: Final answer
    x = 18,594.56

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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.