Home / 18,536.41-25,578.62-10,981.38

Finding the Fourth Proportional to 18,536.41, 25,578.62 and 10,981.38

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Solution

The fourth proportional to 18,536.41, 25,578.62 and 10,981.38 is: 15,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.41 : 25,578.62 = 10,981.38 : x
  2. Step 2: Convert to fraction form
    18,536.41/25,578.62 = 10,981.38/x
  3. Step 3: Cross multiply
    18,536.41x = 25,578.62 × 10,981.38
  4. Step 4: Simplify right side
    18,536.41x = 280,888,546.10
  5. Step 5: Solve for x
    x = 280,888,546.10/18,536.41
  6. Step 6: Final answer
    x = 15,153.35

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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.