Home / 30,338.20-41,861.64-16,906.51

Finding the Fourth Proportional to 30,338.20, 41,861.64 and 16,906.51

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Solution

The fourth proportional to 30,338.20, 41,861.64 and 16,906.51 is: 23,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,338.20 : 41,861.64 = 16,906.51 : x
  2. Step 2: Convert to fraction form
    30,338.20/41,861.64 = 16,906.51/x
  3. Step 3: Cross multiply
    30,338.20x = 41,861.64 × 16,906.51
  4. Step 4: Simplify right side
    30,338.20x = 707,734,235.28
  5. Step 5: Solve for x
    x = 707,734,235.28/30,338.20
  6. Step 6: Final answer
    x = 23,328.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.