Home / 21,353.36-29,464.89-11,922.32

Finding the Fourth Proportional to 21,353.36, 29,464.89 and 11,922.32

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Solution

The fourth proportional to 21,353.36, 29,464.89 and 11,922.32 is: 16,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.36 : 29,464.89 = 11,922.32 : x
  2. Step 2: Convert to fraction form
    21,353.36/29,464.89 = 11,922.32/x
  3. Step 3: Cross multiply
    21,353.36x = 29,464.89 × 11,922.32
  4. Step 4: Simplify right side
    21,353.36x = 351,289,847.34
  5. Step 5: Solve for x
    x = 351,289,847.34/21,353.36
  6. Step 6: Final answer
    x = 16,451.27

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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.