Home / 20,333.76-27,850.32-19,138.20

Finding the Fourth Proportional to 20,333.76, 27,850.32 and 19,138.20

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Solution

The fourth proportional to 20,333.76, 27,850.32 and 19,138.20 is: 26,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.76 : 27,850.32 = 19,138.20 : x
  2. Step 2: Convert to fraction form
    20,333.76/27,850.32 = 19,138.20/x
  3. Step 3: Cross multiply
    20,333.76x = 27,850.32 × 19,138.20
  4. Step 4: Simplify right side
    20,333.76x = 533,004,994.22
  5. Step 5: Solve for x
    x = 533,004,994.22/20,333.76
  6. Step 6: Final answer
    x = 26,212.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.