Home / 39,751.67-54,858.32-21,847.13

Finding the Fourth Proportional to 39,751.67, 54,858.32 and 21,847.13

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Solution

The fourth proportional to 39,751.67, 54,858.32 and 21,847.13 is: 30,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.67 : 54,858.32 = 21,847.13 : x
  2. Step 2: Convert to fraction form
    39,751.67/54,858.32 = 21,847.13/x
  3. Step 3: Cross multiply
    39,751.67x = 54,858.32 × 21,847.13
  4. Step 4: Simplify right side
    39,751.67x = 1,198,496,465.09
  5. Step 5: Solve for x
    x = 1,198,496,465.09/39,751.67
  6. Step 6: Final answer
    x = 30,149.59

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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.