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Finding the Fourth Proportional to 30,426.62, 45,640.02 and 9,366.50

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Solution

The fourth proportional to 30,426.62, 45,640.02 and 9,366.50 is: 14,049.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.62 : 45,640.02 = 9,366.50 : x
  2. Step 2: Convert to fraction form
    30,426.62/45,640.02 = 9,366.50/x
  3. Step 3: Cross multiply
    30,426.62x = 45,640.02 × 9,366.50
  4. Step 4: Simplify right side
    30,426.62x = 427,487,247.33
  5. Step 5: Solve for x
    x = 427,487,247.33/30,426.62
  6. Step 6: Final answer
    x = 14,049.78

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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.