Home / 21,873.24-30,175.61-13,375.73

Finding the Fourth Proportional to 21,873.24, 30,175.61 and 13,375.73

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Solution

The fourth proportional to 21,873.24, 30,175.61 and 13,375.73 is: 18,452.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.24 : 30,175.61 = 13,375.73 : x
  2. Step 2: Convert to fraction form
    21,873.24/30,175.61 = 13,375.73/x
  3. Step 3: Cross multiply
    21,873.24x = 30,175.61 × 13,375.73
  4. Step 4: Simplify right side
    21,873.24x = 403,620,820.51
  5. Step 5: Solve for x
    x = 403,620,820.51/21,873.24
  6. Step 6: Final answer
    x = 18,452.72

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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.