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Finding the Fourth Proportional to 30,297.38, 45,446.54 and 9,520.88

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Solution

The fourth proportional to 30,297.38, 45,446.54 and 9,520.88 is: 14,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,297.38 : 45,446.54 = 9,520.88 : x
  2. Step 2: Convert to fraction form
    30,297.38/45,446.54 = 9,520.88/x
  3. Step 3: Cross multiply
    30,297.38x = 45,446.54 × 9,520.88
  4. Step 4: Simplify right side
    30,297.38x = 432,690,778.92
  5. Step 5: Solve for x
    x = 432,690,778.92/30,297.38
  6. Step 6: Final answer
    x = 14,281.46

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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.