Home / 28,183.28-38,874.20-18,124.44

Finding the Fourth Proportional to 28,183.28, 38,874.20 and 18,124.44

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Solution

The fourth proportional to 28,183.28, 38,874.20 and 18,124.44 is: 24,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.28 : 38,874.20 = 18,124.44 : x
  2. Step 2: Convert to fraction form
    28,183.28/38,874.20 = 18,124.44/x
  3. Step 3: Cross multiply
    28,183.28x = 38,874.20 × 18,124.44
  4. Step 4: Simplify right side
    28,183.28x = 704,573,150.76
  5. Step 5: Solve for x
    x = 704,573,150.76/28,183.28
  6. Step 6: Final answer
    x = 24,999.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.