Home / 39,751.23-54,857.82-21,847.45

Finding the Fourth Proportional to 39,751.23, 54,857.82 and 21,847.45

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Solution

The fourth proportional to 39,751.23, 54,857.82 and 21,847.45 is: 30,150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.23 : 54,857.82 = 21,847.45 : x
  2. Step 2: Convert to fraction form
    39,751.23/54,857.82 = 21,847.45/x
  3. Step 3: Cross multiply
    39,751.23x = 54,857.82 × 21,847.45
  4. Step 4: Simplify right side
    39,751.23x = 1,198,503,280.74
  5. Step 5: Solve for x
    x = 1,198,503,280.74/39,751.23
  6. Step 6: Final answer
    x = 30,150.09

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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.