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Finding the Fourth Proportional to 26,728.21, 40,098.80 and 8,008.21

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Solution

The fourth proportional to 26,728.21, 40,098.80 and 8,008.21 is: 12,014.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.21 : 40,098.80 = 8,008.21 : x
  2. Step 2: Convert to fraction form
    26,728.21/40,098.80 = 8,008.21/x
  3. Step 3: Cross multiply
    26,728.21x = 40,098.80 × 8,008.21
  4. Step 4: Simplify right side
    26,728.21x = 321,119,611.15
  5. Step 5: Solve for x
    x = 321,119,611.15/26,728.21
  6. Step 6: Final answer
    x = 12,014.26

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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.