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Finding the Fourth Proportional to 30,449.61, 45,672.59 and 8,262.49

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Solution

The fourth proportional to 30,449.61, 45,672.59 and 8,262.49 is: 12,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.61 : 45,672.59 = 8,262.49 : x
  2. Step 2: Convert to fraction form
    30,449.61/45,672.59 = 8,262.49/x
  3. Step 3: Cross multiply
    30,449.61x = 45,672.59 × 8,262.49
  4. Step 4: Simplify right side
    30,449.61x = 377,369,318.15
  5. Step 5: Solve for x
    x = 377,369,318.15/30,449.61
  6. Step 6: Final answer
    x = 12,393.24

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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.