Home / 20,338.44-28,052.58-18,665.26

Finding the Fourth Proportional to 20,338.44, 28,052.58 and 18,665.26

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Solution

The fourth proportional to 20,338.44, 28,052.58 and 18,665.26 is: 25,744.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.44 : 28,052.58 = 18,665.26 : x
  2. Step 2: Convert to fraction form
    20,338.44/28,052.58 = 18,665.26/x
  3. Step 3: Cross multiply
    20,338.44x = 28,052.58 × 18,665.26
  4. Step 4: Simplify right side
    20,338.44x = 523,608,699.37
  5. Step 5: Solve for x
    x = 523,608,699.37/20,338.44
  6. Step 6: Final answer
    x = 25,744.78

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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.