Home / 18,529.94-25,611.32-16,390.33

Finding the Fourth Proportional to 18,529.94, 25,611.32 and 16,390.33

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Solution

The fourth proportional to 18,529.94, 25,611.32 and 16,390.33 is: 22,654.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529.94 : 25,611.32 = 16,390.33 : x
  2. Step 2: Convert to fraction form
    18,529.94/25,611.32 = 16,390.33/x
  3. Step 3: Cross multiply
    18,529.94x = 25,611.32 × 16,390.33
  4. Step 4: Simplify right side
    18,529.94x = 419,777,776.53
  5. Step 5: Solve for x
    x = 419,777,776.53/18,529.94
  6. Step 6: Final answer
    x = 22,654.03

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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.