Home / 27,138.12-37,448.94-15,199.44

Finding the Fourth Proportional to 27,138.12, 37,448.94 and 15,199.44

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Solution

The fourth proportional to 27,138.12, 37,448.94 and 15,199.44 is: 20,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.12 : 37,448.94 = 15,199.44 : x
  2. Step 2: Convert to fraction form
    27,138.12/37,448.94 = 15,199.44/x
  3. Step 3: Cross multiply
    27,138.12x = 37,448.94 × 15,199.44
  4. Step 4: Simplify right side
    27,138.12x = 569,202,916.59
  5. Step 5: Solve for x
    x = 569,202,916.59/27,138.12
  6. Step 6: Final answer
    x = 20,974.29

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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.