Home / 27,128.78-37,450.68-18,069.21

Finding the Fourth Proportional to 27,128.78, 37,450.68 and 18,069.21

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Solution

The fourth proportional to 27,128.78, 37,450.68 and 18,069.21 is: 24,944.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.78 : 37,450.68 = 18,069.21 : x
  2. Step 2: Convert to fraction form
    27,128.78/37,450.68 = 18,069.21/x
  3. Step 3: Cross multiply
    27,128.78x = 37,450.68 × 18,069.21
  4. Step 4: Simplify right side
    27,128.78x = 676,704,201.56
  5. Step 5: Solve for x
    x = 676,704,201.56/27,128.78
  6. Step 6: Final answer
    x = 24,944.15

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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.