Home / 27,057.22-37,339.74-15,121.90

Finding the Fourth Proportional to 27,057.22, 37,339.74 and 15,121.90

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Solution

The fourth proportional to 27,057.22, 37,339.74 and 15,121.90 is: 20,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.22 : 37,339.74 = 15,121.90 : x
  2. Step 2: Convert to fraction form
    27,057.22/37,339.74 = 15,121.90/x
  3. Step 3: Cross multiply
    27,057.22x = 37,339.74 × 15,121.90
  4. Step 4: Simplify right side
    27,057.22x = 564,647,814.31
  5. Step 5: Solve for x
    x = 564,647,814.31/27,057.22
  6. Step 6: Final answer
    x = 20,868.66

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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.