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Finding the Fourth Proportional to 30,122.92, 45,186.73 and 7,936.04

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Solution

The fourth proportional to 30,122.92, 45,186.73 and 7,936.04 is: 11,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.92 : 45,186.73 = 7,936.04 : x
  2. Step 2: Convert to fraction form
    30,122.92/45,186.73 = 7,936.04/x
  3. Step 3: Cross multiply
    30,122.92x = 45,186.73 × 7,936.04
  4. Step 4: Simplify right side
    30,122.92x = 358,603,789.88
  5. Step 5: Solve for x
    x = 358,603,789.88/30,122.92
  6. Step 6: Final answer
    x = 11,904.68

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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.