Home / 39,804.24-54,929.85-21,900.41

Finding the Fourth Proportional to 39,804.24, 54,929.85 and 21,900.41

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Solution

The fourth proportional to 39,804.24, 54,929.85 and 21,900.41 is: 30,222.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,804.24 : 54,929.85 = 21,900.41 : x
  2. Step 2: Convert to fraction form
    39,804.24/54,929.85 = 21,900.41/x
  3. Step 3: Cross multiply
    39,804.24x = 54,929.85 × 21,900.41
  4. Step 4: Simplify right side
    39,804.24x = 1,202,986,085.45
  5. Step 5: Solve for x
    x = 1,202,986,085.45/39,804.24
  6. Step 6: Final answer
    x = 30,222.56

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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.