Home / 28,906.14-39,893.70-16,331.70

Finding the Fourth Proportional to 28,906.14, 39,893.70 and 16,331.70

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Solution

The fourth proportional to 28,906.14, 39,893.70 and 16,331.70 is: 22,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.14 : 39,893.70 = 16,331.70 : x
  2. Step 2: Convert to fraction form
    28,906.14/39,893.70 = 16,331.70/x
  3. Step 3: Cross multiply
    28,906.14x = 39,893.70 × 16,331.70
  4. Step 4: Simplify right side
    28,906.14x = 651,531,940.29
  5. Step 5: Solve for x
    x = 651,531,940.29/28,906.14
  6. Step 6: Final answer
    x = 22,539.57

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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.