Home / 28,249.11-42,380.53-8,526.49

Finding the Fourth Proportional to 28,249.11, 42,380.53 and 8,526.49

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Solution

The fourth proportional to 28,249.11, 42,380.53 and 8,526.49 is: 12,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.11 : 42,380.53 = 8,526.49 : x
  2. Step 2: Convert to fraction form
    28,249.11/42,380.53 = 8,526.49/x
  3. Step 3: Cross multiply
    28,249.11x = 42,380.53 × 8,526.49
  4. Step 4: Simplify right side
    28,249.11x = 361,357,037.97
  5. Step 5: Solve for x
    x = 361,357,037.97/28,249.11
  6. Step 6: Final answer
    x = 12,791.80

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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.