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Finding the Fourth Proportional to 30,003.80, 44,969.70 and 12,464.60

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Solution

The fourth proportional to 30,003.80, 44,969.70 and 12,464.60 is: 18,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.80 : 44,969.70 = 12,464.60 : x
  2. Step 2: Convert to fraction form
    30,003.80/44,969.70 = 12,464.60/x
  3. Step 3: Cross multiply
    30,003.80x = 44,969.70 × 12,464.60
  4. Step 4: Simplify right side
    30,003.80x = 560,529,322.62
  5. Step 5: Solve for x
    x = 560,529,322.62/30,003.80
  6. Step 6: Final answer
    x = 18,681.94

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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.