Home / 20,133.88-27,787.62-11,753.08

Finding the Fourth Proportional to 20,133.88, 27,787.62 and 11,753.08

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Solution

The fourth proportional to 20,133.88, 27,787.62 and 11,753.08 is: 16,220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.88 : 27,787.62 = 11,753.08 : x
  2. Step 2: Convert to fraction form
    20,133.88/27,787.62 = 11,753.08/x
  3. Step 3: Cross multiply
    20,133.88x = 27,787.62 × 11,753.08
  4. Step 4: Simplify right side
    20,133.88x = 326,590,120.87
  5. Step 5: Solve for x
    x = 326,590,120.87/20,133.88
  6. Step 6: Final answer
    x = 16,220.92

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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.