Home / 43,723.72-65,585.44-18,747.60

Finding the Fourth Proportional to 43,723.72, 65,585.44 and 18,747.60

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Solution

The fourth proportional to 43,723.72, 65,585.44 and 18,747.60 is: 28,121.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,723.72 : 65,585.44 = 18,747.60 : x
  2. Step 2: Convert to fraction form
    43,723.72/65,585.44 = 18,747.60/x
  3. Step 3: Cross multiply
    43,723.72x = 65,585.44 × 18,747.60
  4. Step 4: Simplify right side
    43,723.72x = 1,229,569,594.94
  5. Step 5: Solve for x
    x = 1,229,569,594.94/43,723.72
  6. Step 6: Final answer
    x = 28,121.34

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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.