Home / 21,046.30-29,044.21-11,486.68

Finding the Fourth Proportional to 21,046.30, 29,044.21 and 11,486.68

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Solution

The fourth proportional to 21,046.30, 29,044.21 and 11,486.68 is: 15,851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.30 : 29,044.21 = 11,486.68 : x
  2. Step 2: Convert to fraction form
    21,046.30/29,044.21 = 11,486.68/x
  3. Step 3: Cross multiply
    21,046.30x = 29,044.21 × 11,486.68
  4. Step 4: Simplify right side
    21,046.30x = 333,621,546.12
  5. Step 5: Solve for x
    x = 333,621,546.12/21,046.30
  6. Step 6: Final answer
    x = 15,851.79

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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.