Home / 20,846.85-28,765.98-11,893.83

Finding the Fourth Proportional to 20,846.85, 28,765.98 and 11,893.83

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Solution

The fourth proportional to 20,846.85, 28,765.98 and 11,893.83 is: 16,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.85 : 28,765.98 = 11,893.83 : x
  2. Step 2: Convert to fraction form
    20,846.85/28,765.98 = 11,893.83/x
  3. Step 3: Cross multiply
    20,846.85x = 28,765.98 × 11,893.83
  4. Step 4: Simplify right side
    20,846.85x = 342,137,675.90
  5. Step 5: Solve for x
    x = 342,137,675.90/20,846.85
  6. Step 6: Final answer
    x = 16,411.96

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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.