Home / 20,601.36-28,433.43-11,651.64

Finding the Fourth Proportional to 20,601.36, 28,433.43 and 11,651.64

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Solution

The fourth proportional to 20,601.36, 28,433.43 and 11,651.64 is: 16,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.36 : 28,433.43 = 11,651.64 : x
  2. Step 2: Convert to fraction form
    20,601.36/28,433.43 = 11,651.64/x
  3. Step 3: Cross multiply
    20,601.36x = 28,433.43 × 11,651.64
  4. Step 4: Simplify right side
    20,601.36x = 331,296,090.33
  5. Step 5: Solve for x
    x = 331,296,090.33/20,601.36
  6. Step 6: Final answer
    x = 16,081.27

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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.