Home / 21,943.64-30,282.04-11,872.08

Finding the Fourth Proportional to 21,943.64, 30,282.04 and 11,872.08

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Solution

The fourth proportional to 21,943.64, 30,282.04 and 11,872.08 is: 16,383.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.64 : 30,282.04 = 11,872.08 : x
  2. Step 2: Convert to fraction form
    21,943.64/30,282.04 = 11,872.08/x
  3. Step 3: Cross multiply
    21,943.64x = 30,282.04 × 11,872.08
  4. Step 4: Simplify right side
    21,943.64x = 359,510,801.44
  5. Step 5: Solve for x
    x = 359,510,801.44/21,943.64
  6. Step 6: Final answer
    x = 16,383.37

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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.