Home / 39,751.29-54,857.79-21,846.75

Finding the Fourth Proportional to 39,751.29, 54,857.79 and 21,846.75

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Solution

The fourth proportional to 39,751.29, 54,857.79 and 21,846.75 is: 30,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.29 : 54,857.79 = 21,846.75 : x
  2. Step 2: Convert to fraction form
    39,751.29/54,857.79 = 21,846.75/x
  3. Step 3: Cross multiply
    39,751.29x = 54,857.79 × 21,846.75
  4. Step 4: Simplify right side
    39,751.29x = 1,198,464,423.68
  5. Step 5: Solve for x
    x = 1,198,464,423.68/39,751.29
  6. Step 6: Final answer
    x = 30,149.07

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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.