Home / 28,160.53-42,234.55-8,436.49

Finding the Fourth Proportional to 28,160.53, 42,234.55 and 8,436.49

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Solution

The fourth proportional to 28,160.53, 42,234.55 and 8,436.49 is: 12,652.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.53 : 42,234.55 = 8,436.49 : x
  2. Step 2: Convert to fraction form
    28,160.53/42,234.55 = 8,436.49/x
  3. Step 3: Cross multiply
    28,160.53x = 42,234.55 × 8,436.49
  4. Step 4: Simplify right side
    28,160.53x = 356,311,358.73
  5. Step 5: Solve for x
    x = 356,311,358.73/28,160.53
  6. Step 6: Final answer
    x = 12,652.86

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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.