Home / 20,178.36-27,826.61-13,464.27

Finding the Fourth Proportional to 20,178.36, 27,826.61 and 13,464.27

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Solution

The fourth proportional to 20,178.36, 27,826.61 and 13,464.27 is: 18,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.36 : 27,826.61 = 13,464.27 : x
  2. Step 2: Convert to fraction form
    20,178.36/27,826.61 = 13,464.27/x
  3. Step 3: Cross multiply
    20,178.36x = 27,826.61 × 13,464.27
  4. Step 4: Simplify right side
    20,178.36x = 374,664,922.90
  5. Step 5: Solve for x
    x = 374,664,922.90/20,178.36
  6. Step 6: Final answer
    x = 18,567.66

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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.