Home / 43,211.66-64,815.32-16,921.22

Finding the Fourth Proportional to 43,211.66, 64,815.32 and 16,921.22

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Solution

The fourth proportional to 43,211.66, 64,815.32 and 16,921.22 is: 25,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,211.66 : 64,815.32 = 16,921.22 : x
  2. Step 2: Convert to fraction form
    43,211.66/64,815.32 = 16,921.22/x
  3. Step 3: Cross multiply
    43,211.66x = 64,815.32 × 16,921.22
  4. Step 4: Simplify right side
    43,211.66x = 1,096,754,289.09
  5. Step 5: Solve for x
    x = 1,096,754,289.09/43,211.66
  6. Step 6: Final answer
    x = 25,380.98

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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.