Home / 28,672.86-43,021.98-11,144.02

Finding the Fourth Proportional to 28,672.86, 43,021.98 and 11,144.02

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Solution

The fourth proportional to 28,672.86, 43,021.98 and 11,144.02 is: 16,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.86 : 43,021.98 = 11,144.02 : x
  2. Step 2: Convert to fraction form
    28,672.86/43,021.98 = 11,144.02/x
  3. Step 3: Cross multiply
    28,672.86x = 43,021.98 × 11,144.02
  4. Step 4: Simplify right side
    28,672.86x = 479,437,805.56
  5. Step 5: Solve for x
    x = 479,437,805.56/28,672.86
  6. Step 6: Final answer
    x = 16,720.96

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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.