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Finding the Fourth Proportional to 30,571.44, 45,861.24 and 12,099.12

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Solution

The fourth proportional to 30,571.44, 45,861.24 and 12,099.12 is: 18,150.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.44 : 45,861.24 = 12,099.12 : x
  2. Step 2: Convert to fraction form
    30,571.44/45,861.24 = 12,099.12/x
  3. Step 3: Cross multiply
    30,571.44x = 45,861.24 × 12,099.12
  4. Step 4: Simplify right side
    30,571.44x = 554,880,646.11
  5. Step 5: Solve for x
    x = 554,880,646.11/30,571.44
  6. Step 6: Final answer
    x = 18,150.29

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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.