Home / 21,548.05-29,736.92-11,988.24

Finding the Fourth Proportional to 21,548.05, 29,736.92 and 11,988.24

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Solution

The fourth proportional to 21,548.05, 29,736.92 and 11,988.24 is: 16,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.05 : 29,736.92 = 11,988.24 : x
  2. Step 2: Convert to fraction form
    21,548.05/29,736.92 = 11,988.24/x
  3. Step 3: Cross multiply
    21,548.05x = 29,736.92 × 11,988.24
  4. Step 4: Simplify right side
    21,548.05x = 356,493,333.82
  5. Step 5: Solve for x
    x = 356,493,333.82/21,548.05
  6. Step 6: Final answer
    x = 16,544.11

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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.