Home / 39,012.33-53,836.99-22,020.15

Finding the Fourth Proportional to 39,012.33, 53,836.99 and 22,020.15

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Solution

The fourth proportional to 39,012.33, 53,836.99 and 22,020.15 is: 30,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,012.33 : 53,836.99 = 22,020.15 : x
  2. Step 2: Convert to fraction form
    39,012.33/53,836.99 = 22,020.15/x
  3. Step 3: Cross multiply
    39,012.33x = 53,836.99 × 22,020.15
  4. Step 4: Simplify right side
    39,012.33x = 1,185,498,540.30
  5. Step 5: Solve for x
    x = 1,185,498,540.30/39,012.33
  6. Step 6: Final answer
    x = 30,387.79

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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.