Home / 21,060.76-29,064.42-11,629.60

Finding the Fourth Proportional to 21,060.76, 29,064.42 and 11,629.60

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Solution

The fourth proportional to 21,060.76, 29,064.42 and 11,629.60 is: 16,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.76 : 29,064.42 = 11,629.60 : x
  2. Step 2: Convert to fraction form
    21,060.76/29,064.42 = 11,629.60/x
  3. Step 3: Cross multiply
    21,060.76x = 29,064.42 × 11,629.60
  4. Step 4: Simplify right side
    21,060.76x = 338,007,578.83
  5. Step 5: Solve for x
    x = 338,007,578.83/21,060.76
  6. Step 6: Final answer
    x = 16,049.16

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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.