Home / 43,905.41-65,872.89-13,924.55

Finding the Fourth Proportional to 43,905.41, 65,872.89 and 13,924.55

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Solution

The fourth proportional to 43,905.41, 65,872.89 and 13,924.55 is: 20,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,905.41 : 65,872.89 = 13,924.55 : x
  2. Step 2: Convert to fraction form
    43,905.41/65,872.89 = 13,924.55/x
  3. Step 3: Cross multiply
    43,905.41x = 65,872.89 × 13,924.55
  4. Step 4: Simplify right side
    43,905.41x = 917,250,021.09
  5. Step 5: Solve for x
    x = 917,250,021.09/43,905.41
  6. Step 6: Final answer
    x = 20,891.51

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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.