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Finding the Fourth Proportional to 30,099.04, 45,191.04 and 18,969.64

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Solution

The fourth proportional to 30,099.04, 45,191.04 and 18,969.64 is: 28,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,099.04 : 45,191.04 = 18,969.64 : x
  2. Step 2: Convert to fraction form
    30,099.04/45,191.04 = 18,969.64/x
  3. Step 3: Cross multiply
    30,099.04x = 45,191.04 × 18,969.64
  4. Step 4: Simplify right side
    30,099.04x = 857,257,760.03
  5. Step 5: Solve for x
    x = 857,257,760.03/30,099.04
  6. Step 6: Final answer
    x = 28,481.23

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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.