Home / 28,104.20-42,129.30-16,245.80

Finding the Fourth Proportional to 28,104.20, 42,129.30 and 16,245.80

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Solution

The fourth proportional to 28,104.20, 42,129.30 and 16,245.80 is: 24,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.20 : 42,129.30 = 16,245.80 : x
  2. Step 2: Convert to fraction form
    28,104.20/42,129.30 = 16,245.80/x
  3. Step 3: Cross multiply
    28,104.20x = 42,129.30 × 16,245.80
  4. Step 4: Simplify right side
    28,104.20x = 684,424,181.94
  5. Step 5: Solve for x
    x = 684,424,181.94/28,104.20
  6. Step 6: Final answer
    x = 24,353.09

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1.5x scale

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.