Home / 21,046.91-29,044.65-11,486.76

Finding the Fourth Proportional to 21,046.91, 29,044.65 and 11,486.76

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Solution

The fourth proportional to 21,046.91, 29,044.65 and 11,486.76 is: 15,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.91 : 29,044.65 = 11,486.76 : x
  2. Step 2: Convert to fraction form
    21,046.91/29,044.65 = 11,486.76/x
  3. Step 3: Cross multiply
    21,046.91x = 29,044.65 × 11,486.76
  4. Step 4: Simplify right side
    21,046.91x = 333,628,989.06
  5. Step 5: Solve for x
    x = 333,628,989.06/21,046.91
  6. Step 6: Final answer
    x = 15,851.68

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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.