Home / 28,892.05-43,336.10-8,115.55

Finding the Fourth Proportional to 28,892.05, 43,336.10 and 8,115.55

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Solution

The fourth proportional to 28,892.05, 43,336.10 and 8,115.55 is: 12,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.05 : 43,336.10 = 8,115.55 : x
  2. Step 2: Convert to fraction form
    28,892.05/43,336.10 = 8,115.55/x
  3. Step 3: Cross multiply
    28,892.05x = 43,336.10 × 8,115.55
  4. Step 4: Simplify right side
    28,892.05x = 351,696,245.78
  5. Step 5: Solve for x
    x = 351,696,245.78/28,892.05
  6. Step 6: Final answer
    x = 12,172.77

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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.