Home / 20,164.15-27,826.37-11,211.58

Finding the Fourth Proportional to 20,164.15, 27,826.37 and 11,211.58

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Solution

The fourth proportional to 20,164.15, 27,826.37 and 11,211.58 is: 15,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.15 : 27,826.37 = 11,211.58 : x
  2. Step 2: Convert to fraction form
    20,164.15/27,826.37 = 11,211.58/x
  3. Step 3: Cross multiply
    20,164.15x = 27,826.37 × 11,211.58
  4. Step 4: Simplify right side
    20,164.15x = 311,977,500.67
  5. Step 5: Solve for x
    x = 311,977,500.67/20,164.15
  6. Step 6: Final answer
    x = 15,471.89

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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.