Home / 39,215.12-54,118.94-22,222.64

Finding the Fourth Proportional to 39,215.12, 54,118.94 and 22,222.64

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Solution

The fourth proportional to 39,215.12, 54,118.94 and 22,222.64 is: 30,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,215.12 : 54,118.94 = 22,222.64 : x
  2. Step 2: Convert to fraction form
    39,215.12/54,118.94 = 22,222.64/x
  3. Step 3: Cross multiply
    39,215.12x = 54,118.94 × 22,222.64
  4. Step 4: Simplify right side
    39,215.12x = 1,202,665,744.99
  5. Step 5: Solve for x
    x = 1,202,665,744.99/39,215.12
  6. Step 6: Final answer
    x = 30,668.42

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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.