Home / 21,238.26-29,310.45-11,809.14

Finding the Fourth Proportional to 21,238.26, 29,310.45 and 11,809.14

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Solution

The fourth proportional to 21,238.26, 29,310.45 and 11,809.14 is: 16,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238.26 : 29,310.45 = 11,809.14 : x
  2. Step 2: Convert to fraction form
    21,238.26/29,310.45 = 11,809.14/x
  3. Step 3: Cross multiply
    21,238.26x = 29,310.45 × 11,809.14
  4. Step 4: Simplify right side
    21,238.26x = 346,131,207.51
  5. Step 5: Solve for x
    x = 346,131,207.51/21,238.26
  6. Step 6: Final answer
    x = 16,297.53

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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.