Home / 21,020.94-29,008.98-11,589.48

Finding the Fourth Proportional to 21,020.94, 29,008.98 and 11,589.48

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Solution

The fourth proportional to 21,020.94, 29,008.98 and 11,589.48 is: 15,993.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.94 : 29,008.98 = 11,589.48 : x
  2. Step 2: Convert to fraction form
    21,020.94/29,008.98 = 11,589.48/x
  3. Step 3: Cross multiply
    21,020.94x = 29,008.98 × 11,589.48
  4. Step 4: Simplify right side
    21,020.94x = 336,198,993.53
  5. Step 5: Solve for x
    x = 336,198,993.53/21,020.94
  6. Step 6: Final answer
    x = 15,993.53

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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.