Home / 21,268.20-31,958.62-11,414.76

Finding the Fourth Proportional to 21,268.20, 31,958.62 and 11,414.76

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Solution

The fourth proportional to 21,268.20, 31,958.62 and 11,414.76 is: 17,152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.20 : 31,958.62 = 11,414.76 : x
  2. Step 2: Convert to fraction form
    21,268.20/31,958.62 = 11,414.76/x
  3. Step 3: Cross multiply
    21,268.20x = 31,958.62 × 11,414.76
  4. Step 4: Simplify right side
    21,268.20x = 364,799,977.23
  5. Step 5: Solve for x
    x = 364,799,977.23/21,268.20
  6. Step 6: Final answer
    x = 17,152.37

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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.