Home / 20,826.60-28,737.34-11,874.12

Finding the Fourth Proportional to 20,826.60, 28,737.34 and 11,874.12

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Solution

The fourth proportional to 20,826.60, 28,737.34 and 11,874.12 is: 16,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.60 : 28,737.34 = 11,874.12 : x
  2. Step 2: Convert to fraction form
    20,826.60/28,737.34 = 11,874.12/x
  3. Step 3: Cross multiply
    20,826.60x = 28,737.34 × 11,874.12
  4. Step 4: Simplify right side
    20,826.60x = 341,230,623.64
  5. Step 5: Solve for x
    x = 341,230,623.64/20,826.60
  6. Step 6: Final answer
    x = 16,384.37

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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.