Home / 39,216.79-54,107.22-22,218.31

Finding the Fourth Proportional to 39,216.79, 54,107.22 and 22,218.31

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Solution

The fourth proportional to 39,216.79, 54,107.22 and 22,218.31 is: 30,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.79 : 54,107.22 = 22,218.31 : x
  2. Step 2: Convert to fraction form
    39,216.79/54,107.22 = 22,218.31/x
  3. Step 3: Cross multiply
    39,216.79x = 54,107.22 × 22,218.31
  4. Step 4: Simplify right side
    39,216.79x = 1,202,170,987.20
  5. Step 5: Solve for x
    x = 1,202,170,987.20/39,216.79
  6. Step 6: Final answer
    x = 30,654.50

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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.