Home / 39,837.12-54,975.09-21,932.16

Finding the Fourth Proportional to 39,837.12, 54,975.09 and 21,932.16

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Solution

The fourth proportional to 39,837.12, 54,975.09 and 21,932.16 is: 30,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,837.12 : 54,975.09 = 21,932.16 : x
  2. Step 2: Convert to fraction form
    39,837.12/54,975.09 = 21,932.16/x
  3. Step 3: Cross multiply
    39,837.12x = 54,975.09 × 21,932.16
  4. Step 4: Simplify right side
    39,837.12x = 1,205,722,469.89
  5. Step 5: Solve for x
    x = 1,205,722,469.89/39,837.12
  6. Step 6: Final answer
    x = 30,266.31

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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.