Home / 17,219.67-23,743.58-15,540.54

Finding the Fourth Proportional to 17,219.67, 23,743.58 and 15,540.54

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Solution

The fourth proportional to 17,219.67, 23,743.58 and 15,540.54 is: 21,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,219.67 : 23,743.58 = 15,540.54 : x
  2. Step 2: Convert to fraction form
    17,219.67/23,743.58 = 15,540.54/x
  3. Step 3: Cross multiply
    17,219.67x = 23,743.58 × 15,540.54
  4. Step 4: Simplify right side
    17,219.67x = 368,987,977.03
  5. Step 5: Solve for x
    x = 368,987,977.03/17,219.67
  6. Step 6: Final answer
    x = 21,428.28

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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.