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Finding the Fourth Proportional to 30,225.92, 45,338.82 and 8,039.32

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Solution

The fourth proportional to 30,225.92, 45,338.82 and 8,039.32 is: 12,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,225.92 : 45,338.82 = 8,039.32 : x
  2. Step 2: Convert to fraction form
    30,225.92/45,338.82 = 8,039.32/x
  3. Step 3: Cross multiply
    30,225.92x = 45,338.82 × 8,039.32
  4. Step 4: Simplify right side
    30,225.92x = 364,493,103.94
  5. Step 5: Solve for x
    x = 364,493,103.94/30,225.92
  6. Step 6: Final answer
    x = 12,058.96

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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.