Home / 23,156.89-31,923.05-15,185.27

Finding the Fourth Proportional to 23,156.89, 31,923.05 and 15,185.27

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Solution

The fourth proportional to 23,156.89, 31,923.05 and 15,185.27 is: 20,933.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,156.89 : 31,923.05 = 15,185.27 : x
  2. Step 2: Convert to fraction form
    23,156.89/31,923.05 = 15,185.27/x
  3. Step 3: Cross multiply
    23,156.89x = 31,923.05 × 15,185.27
  4. Step 4: Simplify right side
    23,156.89x = 484,760,137.35
  5. Step 5: Solve for x
    x = 484,760,137.35/23,156.89
  6. Step 6: Final answer
    x = 20,933.73

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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.