Home / 27,609.12-38,099.52-15,033.60

Finding the Fourth Proportional to 27,609.12, 38,099.52 and 15,033.60

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Solution

The fourth proportional to 27,609.12, 38,099.52 and 15,033.60 is: 20,745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,609.12 : 38,099.52 = 15,033.60 : x
  2. Step 2: Convert to fraction form
    27,609.12/38,099.52 = 15,033.60/x
  3. Step 3: Cross multiply
    27,609.12x = 38,099.52 × 15,033.60
  4. Step 4: Simplify right side
    27,609.12x = 572,772,943.87
  5. Step 5: Solve for x
    x = 572,772,943.87/27,609.12
  6. Step 6: Final answer
    x = 20,745.79

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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.