Home / 20,901.26-28,843.36-11,826.54

Finding the Fourth Proportional to 20,901.26, 28,843.36 and 11,826.54

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Solution

The fourth proportional to 20,901.26, 28,843.36 and 11,826.54 is: 16,320.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,901.26 : 28,843.36 = 11,826.54 : x
  2. Step 2: Convert to fraction form
    20,901.26/28,843.36 = 11,826.54/x
  3. Step 3: Cross multiply
    20,901.26x = 28,843.36 × 11,826.54
  4. Step 4: Simplify right side
    20,901.26x = 341,117,150.77
  5. Step 5: Solve for x
    x = 341,117,150.77/20,901.26
  6. Step 6: Final answer
    x = 16,320.41

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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.