Home / 18,021.16-24,879.54-13,738.60

Finding the Fourth Proportional to 18,021.16, 24,879.54 and 13,738.60

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Solution

The fourth proportional to 18,021.16, 24,879.54 and 13,738.60 is: 18,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.16 : 24,879.54 = 13,738.60 : x
  2. Step 2: Convert to fraction form
    18,021.16/24,879.54 = 13,738.60/x
  3. Step 3: Cross multiply
    18,021.16x = 24,879.54 × 13,738.60
  4. Step 4: Simplify right side
    18,021.16x = 341,810,048.24
  5. Step 5: Solve for x
    x = 341,810,048.24/18,021.16
  6. Step 6: Final answer
    x = 18,967.15

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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.