Home / 39,975.34-55,164.52-21,825.73

Finding the Fourth Proportional to 39,975.34, 55,164.52 and 21,825.73

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Solution

The fourth proportional to 39,975.34, 55,164.52 and 21,825.73 is: 30,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.34 : 55,164.52 = 21,825.73 : x
  2. Step 2: Convert to fraction form
    39,975.34/55,164.52 = 21,825.73/x
  3. Step 3: Cross multiply
    39,975.34x = 55,164.52 × 21,825.73
  4. Step 4: Simplify right side
    39,975.34x = 1,204,005,534.15
  5. Step 5: Solve for x
    x = 1,204,005,534.15/39,975.34
  6. Step 6: Final answer
    x = 30,118.71

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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.