Home / 20,172.08-27,806.64-14,187.44

Finding the Fourth Proportional to 20,172.08, 27,806.64 and 14,187.44

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Solution

The fourth proportional to 20,172.08, 27,806.64 and 14,187.44 is: 19,556.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.08 : 27,806.64 = 14,187.44 : x
  2. Step 2: Convert to fraction form
    20,172.08/27,806.64 = 14,187.44/x
  3. Step 3: Cross multiply
    20,172.08x = 27,806.64 × 14,187.44
  4. Step 4: Simplify right side
    20,172.08x = 394,505,036.60
  5. Step 5: Solve for x
    x = 394,505,036.60/20,172.08
  6. Step 6: Final answer
    x = 19,556.98

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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.