Home / 21,353.11-29,464.54-11,922.07

Finding the Fourth Proportional to 21,353.11, 29,464.54 and 11,922.07

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Solution

The fourth proportional to 21,353.11, 29,464.54 and 11,922.07 is: 16,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.11 : 29,464.54 = 11,922.07 : x
  2. Step 2: Convert to fraction form
    21,353.11/29,464.54 = 11,922.07/x
  3. Step 3: Cross multiply
    21,353.11x = 29,464.54 × 11,922.07
  4. Step 4: Simplify right side
    21,353.11x = 351,278,308.40
  5. Step 5: Solve for x
    x = 351,278,308.40/21,353.11
  6. Step 6: Final answer
    x = 16,450.92

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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.