Home / 20,081.26-30,091.37-15,903.82

Finding the Fourth Proportional to 20,081.26, 30,091.37 and 15,903.82

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Solution

The fourth proportional to 20,081.26, 30,091.37 and 15,903.82 is: 23,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.26 : 30,091.37 = 15,903.82 : x
  2. Step 2: Convert to fraction form
    20,081.26/30,091.37 = 15,903.82/x
  3. Step 3: Cross multiply
    20,081.26x = 30,091.37 × 15,903.82
  4. Step 4: Simplify right side
    20,081.26x = 478,567,581.58
  5. Step 5: Solve for x
    x = 478,567,581.58/20,081.26
  6. Step 6: Final answer
    x = 23,831.56

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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.