Home / 21,215.26-29,276.24-11,784.42

Finding the Fourth Proportional to 21,215.26, 29,276.24 and 11,784.42

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Solution

The fourth proportional to 21,215.26, 29,276.24 and 11,784.42 is: 16,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215.26 : 29,276.24 = 11,784.42 : x
  2. Step 2: Convert to fraction form
    21,215.26/29,276.24 = 11,784.42/x
  3. Step 3: Cross multiply
    21,215.26x = 29,276.24 × 11,784.42
  4. Step 4: Simplify right side
    21,215.26x = 345,003,508.18
  5. Step 5: Solve for x
    x = 345,003,508.18/21,215.26
  6. Step 6: Final answer
    x = 16,262.04

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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.