Home / 38,786.25-53,525.03-21,122.25

Finding the Fourth Proportional to 38,786.25, 53,525.03 and 21,122.25

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Solution

The fourth proportional to 38,786.25, 53,525.03 and 21,122.25 is: 29,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,786.25 : 53,525.03 = 21,122.25 : x
  2. Step 2: Convert to fraction form
    38,786.25/53,525.03 = 21,122.25/x
  3. Step 3: Cross multiply
    38,786.25x = 53,525.03 × 21,122.25
  4. Step 4: Simplify right side
    38,786.25x = 1,130,568,959.31
  5. Step 5: Solve for x
    x = 1,130,568,959.31/38,786.25
  6. Step 6: Final answer
    x = 29,148.71

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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.