Home / 28,334.94-39,099.78-16,399.05

Finding the Fourth Proportional to 28,334.94, 39,099.78 and 16,399.05

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Solution

The fourth proportional to 28,334.94, 39,099.78 and 16,399.05 is: 22,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.94 : 39,099.78 = 16,399.05 : x
  2. Step 2: Convert to fraction form
    28,334.94/39,099.78 = 16,399.05/x
  3. Step 3: Cross multiply
    28,334.94x = 39,099.78 × 16,399.05
  4. Step 4: Simplify right side
    28,334.94x = 641,199,247.21
  5. Step 5: Solve for x
    x = 641,199,247.21/28,334.94
  6. Step 6: Final answer
    x = 22,629.28

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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.