Home / 20,738.43-31,115.07-8,887.23

Finding the Fourth Proportional to 20,738.43, 31,115.07 and 8,887.23

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Solution

The fourth proportional to 20,738.43, 31,115.07 and 8,887.23 is: 13,334.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.43 : 31,115.07 = 8,887.23 : x
  2. Step 2: Convert to fraction form
    20,738.43/31,115.07 = 8,887.23/x
  3. Step 3: Cross multiply
    20,738.43x = 31,115.07 × 8,887.23
  4. Step 4: Simplify right side
    20,738.43x = 276,526,783.56
  5. Step 5: Solve for x
    x = 276,526,783.56/20,738.43
  6. Step 6: Final answer
    x = 13,334.03

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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.