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Finding the Fourth Proportional to 34,855.77, 48,101.70 and 20,708.61

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Solution

The fourth proportional to 34,855.77, 48,101.70 and 20,708.61 is: 28,578.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,855.77 : 48,101.70 = 20,708.61 : x
  2. Step 2: Convert to fraction form
    34,855.77/48,101.70 = 20,708.61/x
  3. Step 3: Cross multiply
    34,855.77x = 48,101.70 × 20,708.61
  4. Step 4: Simplify right side
    34,855.77x = 996,119,397.00
  5. Step 5: Solve for x
    x = 996,119,397.00/34,855.77
  6. Step 6: Final answer
    x = 28,578.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.