Home / 21,134.25-29,165.31-11,704.23

Finding the Fourth Proportional to 21,134.25, 29,165.31 and 11,704.23

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Solution

The fourth proportional to 21,134.25, 29,165.31 and 11,704.23 is: 16,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.25 : 29,165.31 = 11,704.23 : x
  2. Step 2: Convert to fraction form
    21,134.25/29,165.31 = 11,704.23/x
  3. Step 3: Cross multiply
    21,134.25x = 29,165.31 × 11,704.23
  4. Step 4: Simplify right side
    21,134.25x = 341,357,496.26
  5. Step 5: Solve for x
    x = 341,357,496.26/21,134.25
  6. Step 6: Final answer
    x = 16,151.86

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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.