Home / 39,852.18-54,993.81-21,943.69

Finding the Fourth Proportional to 39,852.18, 54,993.81 and 21,943.69

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Solution

The fourth proportional to 39,852.18, 54,993.81 and 21,943.69 is: 30,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,852.18 : 54,993.81 = 21,943.69 : x
  2. Step 2: Convert to fraction form
    39,852.18/54,993.81 = 21,943.69/x
  3. Step 3: Cross multiply
    39,852.18x = 54,993.81 × 21,943.69
  4. Step 4: Simplify right side
    39,852.18x = 1,206,766,843.59
  5. Step 5: Solve for x
    x = 1,206,766,843.59/39,852.18
  6. Step 6: Final answer
    x = 30,281.07

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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.