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Finding the Fourth Proportional to 30,369.44, 45,550.78 and 8,185.02

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Solution

The fourth proportional to 30,369.44, 45,550.78 and 8,185.02 is: 12,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369.44 : 45,550.78 = 8,185.02 : x
  2. Step 2: Convert to fraction form
    30,369.44/45,550.78 = 8,185.02/x
  3. Step 3: Cross multiply
    30,369.44x = 45,550.78 × 8,185.02
  4. Step 4: Simplify right side
    30,369.44x = 372,834,045.32
  5. Step 5: Solve for x
    x = 372,834,045.32/30,369.44
  6. Step 6: Final answer
    x = 12,276.62

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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.