Home / 20,826.94-28,732.04-12,208.75

Finding the Fourth Proportional to 20,826.94, 28,732.04 and 12,208.75

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Solution

The fourth proportional to 20,826.94, 28,732.04 and 12,208.75 is: 16,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.94 : 28,732.04 = 12,208.75 : x
  2. Step 2: Convert to fraction form
    20,826.94/28,732.04 = 12,208.75/x
  3. Step 3: Cross multiply
    20,826.94x = 28,732.04 × 12,208.75
  4. Step 4: Simplify right side
    20,826.94x = 350,782,293.35
  5. Step 5: Solve for x
    x = 350,782,293.35/20,826.94
  6. Step 6: Final answer
    x = 16,842.72

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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.