Home / 21,522.09-29,700.48-11,961.97

Finding the Fourth Proportional to 21,522.09, 29,700.48 and 11,961.97

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Solution

The fourth proportional to 21,522.09, 29,700.48 and 11,961.97 is: 16,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.09 : 29,700.48 = 11,961.97 : x
  2. Step 2: Convert to fraction form
    21,522.09/29,700.48 = 11,961.97/x
  3. Step 3: Cross multiply
    21,522.09x = 29,700.48 × 11,961.97
  4. Step 4: Simplify right side
    21,522.09x = 355,276,250.75
  5. Step 5: Solve for x
    x = 355,276,250.75/21,522.09
  6. Step 6: Final answer
    x = 16,507.52

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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.