Home / 28,786.14-39,724.24-16,039.32

Finding the Fourth Proportional to 28,786.14, 39,724.24 and 16,039.32

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Solution

The fourth proportional to 28,786.14, 39,724.24 and 16,039.32 is: 22,133.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.14 : 39,724.24 = 16,039.32 : x
  2. Step 2: Convert to fraction form
    28,786.14/39,724.24 = 16,039.32/x
  3. Step 3: Cross multiply
    28,786.14x = 39,724.24 × 16,039.32
  4. Step 4: Simplify right side
    28,786.14x = 637,149,797.12
  5. Step 5: Solve for x
    x = 637,149,797.12/28,786.14
  6. Step 6: Final answer
    x = 22,133.91

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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.