Home / 20,178.20-30,230.85-16,460.30

Finding the Fourth Proportional to 20,178.20, 30,230.85 and 16,460.30

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Solution

The fourth proportional to 20,178.20, 30,230.85 and 16,460.30 is: 24,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.20 : 30,230.85 = 16,460.30 : x
  2. Step 2: Convert to fraction form
    20,178.20/30,230.85 = 16,460.30/x
  3. Step 3: Cross multiply
    20,178.20x = 30,230.85 × 16,460.30
  4. Step 4: Simplify right side
    20,178.20x = 497,608,860.26
  5. Step 5: Solve for x
    x = 497,608,860.26/20,178.20
  6. Step 6: Final answer
    x = 24,660.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.