Home / 21,268.68-29,350.44-11,837.40

Finding the Fourth Proportional to 21,268.68, 29,350.44 and 11,837.40

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Solution

The fourth proportional to 21,268.68, 29,350.44 and 11,837.40 is: 16,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.68 : 29,350.44 = 11,837.40 : x
  2. Step 2: Convert to fraction form
    21,268.68/29,350.44 = 11,837.40/x
  3. Step 3: Cross multiply
    21,268.68x = 29,350.44 × 11,837.40
  4. Step 4: Simplify right side
    21,268.68x = 347,432,898.46
  5. Step 5: Solve for x
    x = 347,432,898.46/21,268.68
  6. Step 6: Final answer
    x = 16,335.42

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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.