Home / 28,579.21-39,676.88-27,723.85

Finding the Fourth Proportional to 28,579.21, 39,676.88 and 27,723.85

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Solution

The fourth proportional to 28,579.21, 39,676.88 and 27,723.85 is: 38,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.21 : 39,676.88 = 27,723.85 : x
  2. Step 2: Convert to fraction form
    28,579.21/39,676.88 = 27,723.85/x
  3. Step 3: Cross multiply
    28,579.21x = 39,676.88 × 27,723.85
  4. Step 4: Simplify right side
    28,579.21x = 1,099,995,671.20
  5. Step 5: Solve for x
    x = 1,099,995,671.20/28,579.21
  6. Step 6: Final answer
    x = 38,489.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.