Home / 22,912.32-31,623.84-21,133.56

Finding the Fourth Proportional to 22,912.32, 31,623.84 and 21,133.56

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Solution

The fourth proportional to 22,912.32, 31,623.84 and 21,133.56 is: 29,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,912.32 : 31,623.84 = 21,133.56 : x
  2. Step 2: Convert to fraction form
    22,912.32/31,623.84 = 21,133.56/x
  3. Step 3: Cross multiply
    22,912.32x = 31,623.84 × 21,133.56
  4. Step 4: Simplify right side
    22,912.32x = 668,324,320.07
  5. Step 5: Solve for x
    x = 668,324,320.07/22,912.32
  6. Step 6: Final answer
    x = 29,168.78

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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.