Home / 29,018.26-43,530.53-12,380.05

Finding the Fourth Proportional to 29,018.26, 43,530.53 and 12,380.05

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Solution

The fourth proportional to 29,018.26, 43,530.53 and 12,380.05 is: 18,571.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,018.26 : 43,530.53 = 12,380.05 : x
  2. Step 2: Convert to fraction form
    29,018.26/43,530.53 = 12,380.05/x
  3. Step 3: Cross multiply
    29,018.26x = 43,530.53 × 12,380.05
  4. Step 4: Simplify right side
    29,018.26x = 538,910,137.93
  5. Step 5: Solve for x
    x = 538,910,137.93/29,018.26
  6. Step 6: Final answer
    x = 18,571.41

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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.