Home / 39,977.96-55,167.22-21,825.07

Finding the Fourth Proportional to 39,977.96, 55,167.22 and 21,825.07

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Solution

The fourth proportional to 39,977.96, 55,167.22 and 21,825.07 is: 30,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,977.96 : 55,167.22 = 21,825.07 : x
  2. Step 2: Convert to fraction form
    39,977.96/55,167.22 = 21,825.07/x
  3. Step 3: Cross multiply
    39,977.96x = 55,167.22 × 21,825.07
  4. Step 4: Simplify right side
    39,977.96x = 1,204,028,245.72
  5. Step 5: Solve for x
    x = 1,204,028,245.72/39,977.96
  6. Step 6: Final answer
    x = 30,117.30

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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.