Home / 27,138.66-37,469.63-16,945.21

Finding the Fourth Proportional to 27,138.66, 37,469.63 and 16,945.21

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Solution

The fourth proportional to 27,138.66, 37,469.63 and 16,945.21 is: 23,395.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.66 : 37,469.63 = 16,945.21 : x
  2. Step 2: Convert to fraction form
    27,138.66/37,469.63 = 16,945.21/x
  3. Step 3: Cross multiply
    27,138.66x = 37,469.63 × 16,945.21
  4. Step 4: Simplify right side
    27,138.66x = 634,930,748.97
  5. Step 5: Solve for x
    x = 634,930,748.97/27,138.66
  6. Step 6: Final answer
    x = 23,395.80

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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.