Home / 21,534.34-29,716.26-11,974.84

Finding the Fourth Proportional to 21,534.34, 29,716.26 and 11,974.84

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Solution

The fourth proportional to 21,534.34, 29,716.26 and 11,974.84 is: 16,524.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,534.34 : 29,716.26 = 11,974.84 : x
  2. Step 2: Convert to fraction form
    21,534.34/29,716.26 = 11,974.84/x
  3. Step 3: Cross multiply
    21,534.34x = 29,716.26 × 11,974.84
  4. Step 4: Simplify right side
    21,534.34x = 355,847,458.90
  5. Step 5: Solve for x
    x = 355,847,458.90/21,534.34
  6. Step 6: Final answer
    x = 16,524.65

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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.