Home / 22,728.70-31,353.04-18,919.54

Finding the Fourth Proportional to 22,728.70, 31,353.04 and 18,919.54

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Solution

The fourth proportional to 22,728.70, 31,353.04 and 18,919.54 is: 26,098.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.70 : 31,353.04 = 18,919.54 : x
  2. Step 2: Convert to fraction form
    22,728.70/31,353.04 = 18,919.54/x
  3. Step 3: Cross multiply
    22,728.70x = 31,353.04 × 18,919.54
  4. Step 4: Simplify right side
    22,728.70x = 593,185,157.24
  5. Step 5: Solve for x
    x = 593,185,157.24/22,728.70
  6. Step 6: Final answer
    x = 26,098.51

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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.