Home / 28,676.90-39,578.83-16,577.78

Finding the Fourth Proportional to 28,676.90, 39,578.83 and 16,577.78

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Solution

The fourth proportional to 28,676.90, 39,578.83 and 16,577.78 is: 22,880.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.90 : 39,578.83 = 16,577.78 : x
  2. Step 2: Convert to fraction form
    28,676.90/39,578.83 = 16,577.78/x
  3. Step 3: Cross multiply
    28,676.90x = 39,578.83 × 16,577.78
  4. Step 4: Simplify right side
    28,676.90x = 656,129,119.69
  5. Step 5: Solve for x
    x = 656,129,119.69/28,676.90
  6. Step 6: Final answer
    x = 22,880.06

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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.