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Finding the Fourth Proportional to 30,414.05, 45,621.07 and 15,614.74

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Solution

The fourth proportional to 30,414.05, 45,621.07 and 15,614.74 is: 23,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,414.05 : 45,621.07 = 15,614.74 : x
  2. Step 2: Convert to fraction form
    30,414.05/45,621.07 = 15,614.74/x
  3. Step 3: Cross multiply
    30,414.05x = 45,621.07 × 15,614.74
  4. Step 4: Simplify right side
    30,414.05x = 712,361,252.39
  5. Step 5: Solve for x
    x = 712,361,252.39/30,414.05
  6. Step 6: Final answer
    x = 23,422.11

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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.