Home / 39,738.25-54,838.83-21,833.29

Finding the Fourth Proportional to 39,738.25, 54,838.83 and 21,833.29

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Solution

The fourth proportional to 39,738.25, 54,838.83 and 21,833.29 is: 30,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,738.25 : 54,838.83 = 21,833.29 : x
  2. Step 2: Convert to fraction form
    39,738.25/54,838.83 = 21,833.29/x
  3. Step 3: Cross multiply
    39,738.25x = 54,838.83 × 21,833.29
  4. Step 4: Simplify right side
    39,738.25x = 1,197,312,078.65
  5. Step 5: Solve for x
    x = 1,197,312,078.65/39,738.25
  6. Step 6: Final answer
    x = 30,129.96

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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.