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Finding the Fourth Proportional to 22,839.86, 34,239.02 and 8,790.92

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Solution

The fourth proportional to 22,839.86, 34,239.02 and 8,790.92 is: 13,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,839.86 : 34,239.02 = 8,790.92 : x
  2. Step 2: Convert to fraction form
    22,839.86/34,239.02 = 8,790.92/x
  3. Step 3: Cross multiply
    22,839.86x = 34,239.02 × 8,790.92
  4. Step 4: Simplify right side
    22,839.86x = 300,992,485.70
  5. Step 5: Solve for x
    x = 300,992,485.70/22,839.86
  6. Step 6: Final answer
    x = 13,178.39

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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.