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Finding the Fourth Proportional to 30,168.25, 41,631.55 and 16,739.22

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Solution

The fourth proportional to 30,168.25, 41,631.55 and 16,739.22 is: 23,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.25 : 41,631.55 = 16,739.22 : x
  2. Step 2: Convert to fraction form
    30,168.25/41,631.55 = 16,739.22/x
  3. Step 3: Cross multiply
    30,168.25x = 41,631.55 × 16,739.22
  4. Step 4: Simplify right side
    30,168.25x = 696,879,612.16
  5. Step 5: Solve for x
    x = 696,879,612.16/30,168.25
  6. Step 6: Final answer
    x = 23,099.77

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