Home / 43,912.24-65,848.20-18,940.32

Finding the Fourth Proportional to 43,912.24, 65,848.20 and 18,940.32

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Solution

The fourth proportional to 43,912.24, 65,848.20 and 18,940.32 is: 28,401.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,912.24 : 65,848.20 = 18,940.32 : x
  2. Step 2: Convert to fraction form
    43,912.24/65,848.20 = 18,940.32/x
  3. Step 3: Cross multiply
    43,912.24x = 65,848.20 × 18,940.32
  4. Step 4: Simplify right side
    43,912.24x = 1,247,185,979.42
  5. Step 5: Solve for x
    x = 1,247,185,979.42/43,912.24
  6. Step 6: Final answer
    x = 28,401.78

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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.