Home / 39,751.80-54,857.04-21,846.62

Finding the Fourth Proportional to 39,751.80, 54,857.04 and 21,846.62

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Solution

The fourth proportional to 39,751.80, 54,857.04 and 21,846.62 is: 30,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.80 : 54,857.04 = 21,846.62 : x
  2. Step 2: Convert to fraction form
    39,751.80/54,857.04 = 21,846.62/x
  3. Step 3: Cross multiply
    39,751.80x = 54,857.04 × 21,846.62
  4. Step 4: Simplify right side
    39,751.80x = 1,198,440,907.20
  5. Step 5: Solve for x
    x = 1,198,440,907.20/39,751.80
  6. Step 6: Final answer
    x = 30,148.09

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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.