Home / 27,891.64-41,851.80-18,538.09

Finding the Fourth Proportional to 27,891.64, 41,851.80 and 18,538.09

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Solution

The fourth proportional to 27,891.64, 41,851.80 and 18,538.09 is: 27,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891.64 : 41,851.80 = 18,538.09 : x
  2. Step 2: Convert to fraction form
    27,891.64/41,851.80 = 18,538.09/x
  3. Step 3: Cross multiply
    27,891.64x = 41,851.80 × 18,538.09
  4. Step 4: Simplify right side
    27,891.64x = 775,852,435.06
  5. Step 5: Solve for x
    x = 775,852,435.06/27,891.64
  6. Step 6: Final answer
    x = 27,816.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.