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Finding the Fourth Proportional to 26,808.81, 40,200.22 and 8,085.39

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Solution

The fourth proportional to 26,808.81, 40,200.22 and 8,085.39 is: 12,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,808.81 : 40,200.22 = 8,085.39 : x
  2. Step 2: Convert to fraction form
    26,808.81/40,200.22 = 8,085.39/x
  3. Step 3: Cross multiply
    26,808.81x = 40,200.22 × 8,085.39
  4. Step 4: Simplify right side
    26,808.81x = 325,034,416.36
  5. Step 5: Solve for x
    x = 325,034,416.36/26,808.81
  6. Step 6: Final answer
    x = 12,124.16

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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.