Home / 28,475.18-42,716.84-8,755.39

Finding the Fourth Proportional to 28,475.18, 42,716.84 and 8,755.39

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Solution

The fourth proportional to 28,475.18, 42,716.84 and 8,755.39 is: 13,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475.18 : 42,716.84 = 8,755.39 : x
  2. Step 2: Convert to fraction form
    28,475.18/42,716.84 = 8,755.39/x
  3. Step 3: Cross multiply
    28,475.18x = 42,716.84 × 8,755.39
  4. Step 4: Simplify right side
    28,475.18x = 374,002,593.77
  5. Step 5: Solve for x
    x = 374,002,593.77/28,475.18
  6. Step 6: Final answer
    x = 13,134.34

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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.