Home / 28,601.36-39,469.20-16,028.72

Finding the Fourth Proportional to 28,601.36, 39,469.20 and 16,028.72

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Solution

The fourth proportional to 28,601.36, 39,469.20 and 16,028.72 is: 22,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.36 : 39,469.20 = 16,028.72 : x
  2. Step 2: Convert to fraction form
    28,601.36/39,469.20 = 16,028.72/x
  3. Step 3: Cross multiply
    28,601.36x = 39,469.20 × 16,028.72
  4. Step 4: Simplify right side
    28,601.36x = 632,640,755.42
  5. Step 5: Solve for x
    x = 632,640,755.42/28,601.36
  6. Step 6: Final answer
    x = 22,119.25

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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.