Home / 19,087.20-28,650.24-13,255.20

Finding the Fourth Proportional to 19,087.20, 28,650.24 and 13,255.20

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Solution

The fourth proportional to 19,087.20, 28,650.24 and 13,255.20 is: 19,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.20 : 28,650.24 = 13,255.20 : x
  2. Step 2: Convert to fraction form
    19,087.20/28,650.24 = 13,255.20/x
  3. Step 3: Cross multiply
    19,087.20x = 28,650.24 × 13,255.20
  4. Step 4: Simplify right side
    19,087.20x = 379,764,661.25
  5. Step 5: Solve for x
    x = 379,764,661.25/19,087.20
  6. Step 6: Final answer
    x = 19,896.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.