Home / 28,945.32-39,944.88-16,199.28

Finding the Fourth Proportional to 28,945.32, 39,944.88 and 16,199.28

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Solution

The fourth proportional to 28,945.32, 39,944.88 and 16,199.28 is: 22,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.32 : 39,944.88 = 16,199.28 : x
  2. Step 2: Convert to fraction form
    28,945.32/39,944.88 = 16,199.28/x
  3. Step 3: Cross multiply
    28,945.32x = 39,944.88 × 16,199.28
  4. Step 4: Simplify right side
    28,945.32x = 647,078,295.69
  5. Step 5: Solve for x
    x = 647,078,295.69/28,945.32
  6. Step 6: Final answer
    x = 22,355.20

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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.