Home / 38,735.94-53,453.40-21,738.60

Finding the Fourth Proportional to 38,735.94, 53,453.40 and 21,738.60

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Solution

The fourth proportional to 38,735.94, 53,453.40 and 21,738.60 is: 29,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,735.94 : 53,453.40 = 21,738.60 : x
  2. Step 2: Convert to fraction form
    38,735.94/53,453.40 = 21,738.60/x
  3. Step 3: Cross multiply
    38,735.94x = 53,453.40 × 21,738.60
  4. Step 4: Simplify right side
    38,735.94x = 1,162,002,081.24
  5. Step 5: Solve for x
    x = 1,162,002,081.24/38,735.94
  6. Step 6: Final answer
    x = 29,998.03

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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.