Home / 43,404.82-65,112-13,815.72

Finding the Fourth Proportional to 43,404.82, 65,112 and 13,815.72

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Solution

The fourth proportional to 43,404.82, 65,112 and 13,815.72 is: 20,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,404.82 : 65,112 = 13,815.72 : x
  2. Step 2: Convert to fraction form
    43,404.82/65,112 = 13,815.72/x
  3. Step 3: Cross multiply
    43,404.82x = 65,112 × 13,815.72
  4. Step 4: Simplify right side
    43,404.82x = 899,569,160.64
  5. Step 5: Solve for x
    x = 899,569,160.64/43,404.82
  6. Step 6: Final answer
    x = 20,725.10

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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.