Home / 17,319.85-25,979.73-4,172.20

Finding the Fourth Proportional to 17,319.85, 25,979.73 and 4,172.20

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Solution

The fourth proportional to 17,319.85, 25,979.73 and 4,172.20 is: 6,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,319.85 : 25,979.73 = 4,172.20 : x
  2. Step 2: Convert to fraction form
    17,319.85/25,979.73 = 4,172.20/x
  3. Step 3: Cross multiply
    17,319.85x = 25,979.73 × 4,172.20
  4. Step 4: Simplify right side
    17,319.85x = 108,392,629.51
  5. Step 5: Solve for x
    x = 108,392,629.51/17,319.85
  6. Step 6: Final answer
    x = 6,258.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.