Home / 20,676.09-28,520.24-18,029.82

Finding the Fourth Proportional to 20,676.09, 28,520.24 and 18,029.82

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Solution

The fourth proportional to 20,676.09, 28,520.24 and 18,029.82 is: 24,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.09 : 28,520.24 = 18,029.82 : x
  2. Step 2: Convert to fraction form
    20,676.09/28,520.24 = 18,029.82/x
  3. Step 3: Cross multiply
    20,676.09x = 28,520.24 × 18,029.82
  4. Step 4: Simplify right side
    20,676.09x = 514,214,703.41
  5. Step 5: Solve for x
    x = 514,214,703.41/20,676.09
  6. Step 6: Final answer
    x = 24,870.02

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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.