Home / 39,851.68-54,993.12-21,943.19

Finding the Fourth Proportional to 39,851.68, 54,993.12 and 21,943.19

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Solution

The fourth proportional to 39,851.68, 54,993.12 and 21,943.19 is: 30,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.68 : 54,993.12 = 21,943.19 : x
  2. Step 2: Convert to fraction form
    39,851.68/54,993.12 = 21,943.19/x
  3. Step 3: Cross multiply
    39,851.68x = 54,993.12 × 21,943.19
  4. Step 4: Simplify right side
    39,851.68x = 1,206,724,205.89
  5. Step 5: Solve for x
    x = 1,206,724,205.89/39,851.68
  6. Step 6: Final answer
    x = 30,280.39

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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.