Home / 28,939.14-39,936.78-16,364.16

Finding the Fourth Proportional to 28,939.14, 39,936.78 and 16,364.16

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Solution

The fourth proportional to 28,939.14, 39,936.78 and 16,364.16 is: 22,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.14 : 39,936.78 = 16,364.16 : x
  2. Step 2: Convert to fraction form
    28,939.14/39,936.78 = 16,364.16/x
  3. Step 3: Cross multiply
    28,939.14x = 39,936.78 × 16,364.16
  4. Step 4: Simplify right side
    28,939.14x = 653,531,857.80
  5. Step 5: Solve for x
    x = 653,531,857.80/28,939.14
  6. Step 6: Final answer
    x = 22,582.97

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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.