Home / 35,360.35-53,039.21-11,986.79

Finding the Fourth Proportional to 35,360.35, 53,039.21 and 11,986.79

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Solution

The fourth proportional to 35,360.35, 53,039.21 and 11,986.79 is: 17,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,360.35 : 53,039.21 = 11,986.79 : x
  2. Step 2: Convert to fraction form
    35,360.35/53,039.21 = 11,986.79/x
  3. Step 3: Cross multiply
    35,360.35x = 53,039.21 × 11,986.79
  4. Step 4: Simplify right side
    35,360.35x = 635,769,546.91
  5. Step 5: Solve for x
    x = 635,769,546.91/35,360.35
  6. Step 6: Final answer
    x = 17,979.73

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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.