Home / 25,455.60-38,183.40-17,679.60

Finding the Fourth Proportional to 25,455.60, 38,183.40 and 17,679.60

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Solution

The fourth proportional to 25,455.60, 38,183.40 and 17,679.60 is: 26,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.60 : 38,183.40 = 17,679.60 : x
  2. Step 2: Convert to fraction form
    25,455.60/38,183.40 = 17,679.60/x
  3. Step 3: Cross multiply
    25,455.60x = 38,183.40 × 17,679.60
  4. Step 4: Simplify right side
    25,455.60x = 675,067,238.64
  5. Step 5: Solve for x
    x = 675,067,238.64/25,455.60
  6. Step 6: Final answer
    x = 26,519.40

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1.5x scale

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.