Home / 21,334.82-29,441.84-11,774.78

Finding the Fourth Proportional to 21,334.82, 29,441.84 and 11,774.78

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Solution

The fourth proportional to 21,334.82, 29,441.84 and 11,774.78 is: 16,249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.82 : 29,441.84 = 11,774.78 : x
  2. Step 2: Convert to fraction form
    21,334.82/29,441.84 = 11,774.78/x
  3. Step 3: Cross multiply
    21,334.82x = 29,441.84 × 11,774.78
  4. Step 4: Simplify right side
    21,334.82x = 346,671,188.80
  5. Step 5: Solve for x
    x = 346,671,188.80/21,334.82
  6. Step 6: Final answer
    x = 16,249.08

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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.