Home / 43,919.88-65,824.64-18,930.68

Finding the Fourth Proportional to 43,919.88, 65,824.64 and 18,930.68

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Solution

The fourth proportional to 43,919.88, 65,824.64 and 18,930.68 is: 28,372.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,919.88 : 65,824.64 = 18,930.68 : x
  2. Step 2: Convert to fraction form
    43,919.88/65,824.64 = 18,930.68/x
  3. Step 3: Cross multiply
    43,919.88x = 65,824.64 × 18,930.68
  4. Step 4: Simplify right side
    43,919.88x = 1,246,105,195.96
  5. Step 5: Solve for x
    x = 1,246,105,195.96/43,919.88
  6. Step 6: Final answer
    x = 28,372.24

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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.