Home / 20,163.20-27,826.16-11,210.58

Finding the Fourth Proportional to 20,163.20, 27,826.16 and 11,210.58

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Solution

The fourth proportional to 20,163.20, 27,826.16 and 11,210.58 is: 15,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.20 : 27,826.16 = 11,210.58 : x
  2. Step 2: Convert to fraction form
    20,163.20/27,826.16 = 11,210.58/x
  3. Step 3: Cross multiply
    20,163.20x = 27,826.16 × 11,210.58
  4. Step 4: Simplify right side
    20,163.20x = 311,947,392.77
  5. Step 5: Solve for x
    x = 311,947,392.77/20,163.20
  6. Step 6: Final answer
    x = 15,471.13

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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.