Home / 20,434.94-28,183.28-17,255.60

Finding the Fourth Proportional to 20,434.94, 28,183.28 and 17,255.60

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Solution

The fourth proportional to 20,434.94, 28,183.28 and 17,255.60 is: 23,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.94 : 28,183.28 = 17,255.60 : x
  2. Step 2: Convert to fraction form
    20,434.94/28,183.28 = 17,255.60/x
  3. Step 3: Cross multiply
    20,434.94x = 28,183.28 × 17,255.60
  4. Step 4: Simplify right side
    20,434.94x = 486,319,406.37
  5. Step 5: Solve for x
    x = 486,319,406.37/20,434.94
  6. Step 6: Final answer
    x = 23,798.43

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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.