Home / 28,770.68-43,146.92-12,127.64

Finding the Fourth Proportional to 28,770.68, 43,146.92 and 12,127.64

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Solution

The fourth proportional to 28,770.68, 43,146.92 and 12,127.64 is: 18,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.68 : 43,146.92 = 12,127.64 : x
  2. Step 2: Convert to fraction form
    28,770.68/43,146.92 = 12,127.64/x
  3. Step 3: Cross multiply
    28,770.68x = 43,146.92 × 12,127.64
  4. Step 4: Simplify right side
    28,770.68x = 523,270,312.87
  5. Step 5: Solve for x
    x = 523,270,312.87/28,770.68
  6. Step 6: Final answer
    x = 18,187.62

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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.