Home / 21,046.61-29,044.49-11,486.57

Finding the Fourth Proportional to 21,046.61, 29,044.49 and 11,486.57

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Solution

The fourth proportional to 21,046.61, 29,044.49 and 11,486.57 is: 15,851.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.61 : 29,044.49 = 11,486.57 : x
  2. Step 2: Convert to fraction form
    21,046.61/29,044.49 = 11,486.57/x
  3. Step 3: Cross multiply
    21,046.61x = 29,044.49 × 11,486.57
  4. Step 4: Simplify right side
    21,046.61x = 333,621,582.68
  5. Step 5: Solve for x
    x = 333,621,582.68/21,046.61
  6. Step 6: Final answer
    x = 15,851.56

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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.