Home / 28,839.78-43,265.43-12,199.73

Finding the Fourth Proportional to 28,839.78, 43,265.43 and 12,199.73

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Solution

The fourth proportional to 28,839.78, 43,265.43 and 12,199.73 is: 18,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.78 : 43,265.43 = 12,199.73 : x
  2. Step 2: Convert to fraction form
    28,839.78/43,265.43 = 12,199.73/x
  3. Step 3: Cross multiply
    28,839.78x = 43,265.43 × 12,199.73
  4. Step 4: Simplify right side
    28,839.78x = 527,826,348.01
  5. Step 5: Solve for x
    x = 527,826,348.01/28,839.78
  6. Step 6: Final answer
    x = 18,302.02

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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.