Home / 27,128.64-37,435.10-15,189.44

Finding the Fourth Proportional to 27,128.64, 37,435.10 and 15,189.44

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Solution

The fourth proportional to 27,128.64, 37,435.10 and 15,189.44 is: 20,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.64 : 37,435.10 = 15,189.44 : x
  2. Step 2: Convert to fraction form
    27,128.64/37,435.10 = 15,189.44/x
  3. Step 3: Cross multiply
    27,128.64x = 37,435.10 × 15,189.44
  4. Step 4: Simplify right side
    27,128.64x = 568,617,942.22
  5. Step 5: Solve for x
    x = 568,617,942.22/27,128.64
  6. Step 6: Final answer
    x = 20,960.06

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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.