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Finding the Fourth Proportional to 30,493.53, 45,735.67 and 8,308.68

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Solution

The fourth proportional to 30,493.53, 45,735.67 and 8,308.68 is: 12,461.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,493.53 : 45,735.67 = 8,308.68 : x
  2. Step 2: Convert to fraction form
    30,493.53/45,735.67 = 8,308.68/x
  3. Step 3: Cross multiply
    30,493.53x = 45,735.67 × 8,308.68
  4. Step 4: Simplify right side
    30,493.53x = 380,002,885.49
  5. Step 5: Solve for x
    x = 380,002,885.49/30,493.53
  6. Step 6: Final answer
    x = 12,461.75

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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.