Home / 43,173.88-64,722.40-16,872.64

Finding the Fourth Proportional to 43,173.88, 64,722.40 and 16,872.64

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Solution

The fourth proportional to 43,173.88, 64,722.40 and 16,872.64 is: 25,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,173.88 : 64,722.40 = 16,872.64 : x
  2. Step 2: Convert to fraction form
    43,173.88/64,722.40 = 16,872.64/x
  3. Step 3: Cross multiply
    43,173.88x = 64,722.40 × 16,872.64
  4. Step 4: Simplify right side
    43,173.88x = 1,092,037,755.14
  5. Step 5: Solve for x
    x = 1,092,037,755.14/43,173.88
  6. Step 6: Final answer
    x = 25,293.95

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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.