Home / 28,661.86-39,553.17-16,086.70

Finding the Fourth Proportional to 28,661.86, 39,553.17 and 16,086.70

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Solution

The fourth proportional to 28,661.86, 39,553.17 and 16,086.70 is: 22,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.86 : 39,553.17 = 16,086.70 : x
  2. Step 2: Convert to fraction form
    28,661.86/39,553.17 = 16,086.70/x
  3. Step 3: Cross multiply
    28,661.86x = 39,553.17 × 16,086.70
  4. Step 4: Simplify right side
    28,661.86x = 636,279,979.84
  5. Step 5: Solve for x
    x = 636,279,979.84/28,661.86
  6. Step 6: Final answer
    x = 22,199.54

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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.