Home / 23,082.84-31,843.20-15,121.56

Finding the Fourth Proportional to 23,082.84, 31,843.20 and 15,121.56

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Solution

The fourth proportional to 23,082.84, 31,843.20 and 15,121.56 is: 20,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,082.84 : 31,843.20 = 15,121.56 : x
  2. Step 2: Convert to fraction form
    23,082.84/31,843.20 = 15,121.56/x
  3. Step 3: Cross multiply
    23,082.84x = 31,843.20 × 15,121.56
  4. Step 4: Simplify right side
    23,082.84x = 481,518,859.39
  5. Step 5: Solve for x
    x = 481,518,859.39/23,082.84
  6. Step 6: Final answer
    x = 20,860.47

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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.