Home / 20,873.52-28,629.09-19,743.84

Finding the Fourth Proportional to 20,873.52, 28,629.09 and 19,743.84

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Solution

The fourth proportional to 20,873.52, 28,629.09 and 19,743.84 is: 27,079.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.52 : 28,629.09 = 19,743.84 : x
  2. Step 2: Convert to fraction form
    20,873.52/28,629.09 = 19,743.84/x
  3. Step 3: Cross multiply
    20,873.52x = 28,629.09 × 19,743.84
  4. Step 4: Simplify right side
    20,873.52x = 565,248,172.31
  5. Step 5: Solve for x
    x = 565,248,172.31/20,873.52
  6. Step 6: Final answer
    x = 27,079.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.