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Finding the Fourth Proportional to 30,383.68, 45,575.56 and 8,197.08

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Solution

The fourth proportional to 30,383.68, 45,575.56 and 8,197.08 is: 12,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.68 : 45,575.56 = 8,197.08 : x
  2. Step 2: Convert to fraction form
    30,383.68/45,575.56 = 8,197.08/x
  3. Step 3: Cross multiply
    30,383.68x = 45,575.56 × 8,197.08
  4. Step 4: Simplify right side
    30,383.68x = 373,586,511.36
  5. Step 5: Solve for x
    x = 373,586,511.36/30,383.68
  6. Step 6: Final answer
    x = 12,295.63

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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.