Home / 28,945.20-39,944.16-16,370.40

Finding the Fourth Proportional to 28,945.20, 39,944.16 and 16,370.40

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Solution

The fourth proportional to 28,945.20, 39,944.16 and 16,370.40 is: 22,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.20 : 39,944.16 = 16,370.40 : x
  2. Step 2: Convert to fraction form
    28,945.20/39,944.16 = 16,370.40/x
  3. Step 3: Cross multiply
    28,945.20x = 39,944.16 × 16,370.40
  4. Step 4: Simplify right side
    28,945.20x = 653,901,876.86
  5. Step 5: Solve for x
    x = 653,901,876.86/28,945.20
  6. Step 6: Final answer
    x = 22,591.03

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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.