Home / 21,268.29-29,349.75-11,837.73

Finding the Fourth Proportional to 21,268.29, 29,349.75 and 11,837.73

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Solution

The fourth proportional to 21,268.29, 29,349.75 and 11,837.73 is: 16,335.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.29 : 29,349.75 = 11,837.73 : x
  2. Step 2: Convert to fraction form
    21,268.29/29,349.75 = 11,837.73/x
  3. Step 3: Cross multiply
    21,268.29x = 29,349.75 × 11,837.73
  4. Step 4: Simplify right side
    21,268.29x = 347,434,416.07
  5. Step 5: Solve for x
    x = 347,434,416.07/21,268.29
  6. Step 6: Final answer
    x = 16,335.79

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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.