Home / 28,847.20-39,809.44-16,101.60

Finding the Fourth Proportional to 28,847.20, 39,809.44 and 16,101.60

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Solution

The fourth proportional to 28,847.20, 39,809.44 and 16,101.60 is: 22,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.20 : 39,809.44 = 16,101.60 : x
  2. Step 2: Convert to fraction form
    28,847.20/39,809.44 = 16,101.60/x
  3. Step 3: Cross multiply
    28,847.20x = 39,809.44 × 16,101.60
  4. Step 4: Simplify right side
    28,847.20x = 640,995,679.10
  5. Step 5: Solve for x
    x = 640,995,679.10/28,847.20
  6. Step 6: Final answer
    x = 22,220.38

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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.