Home / 39,119.06-53,983.83-21,213.85

Finding the Fourth Proportional to 39,119.06, 53,983.83 and 21,213.85

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Solution

The fourth proportional to 39,119.06, 53,983.83 and 21,213.85 is: 29,274.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,119.06 : 53,983.83 = 21,213.85 : x
  2. Step 2: Convert to fraction form
    39,119.06/53,983.83 = 21,213.85/x
  3. Step 3: Cross multiply
    39,119.06x = 53,983.83 × 21,213.85
  4. Step 4: Simplify right side
    39,119.06x = 1,145,204,872.05
  5. Step 5: Solve for x
    x = 1,145,204,872.05/39,119.06
  6. Step 6: Final answer
    x = 29,274.86

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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.