Home / 39,798.22-54,922.98-21,894.58

Finding the Fourth Proportional to 39,798.22, 54,922.98 and 21,894.58

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Solution

The fourth proportional to 39,798.22, 54,922.98 and 21,894.58 is: 30,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,798.22 : 54,922.98 = 21,894.58 : x
  2. Step 2: Convert to fraction form
    39,798.22/54,922.98 = 21,894.58/x
  3. Step 3: Cross multiply
    39,798.22x = 54,922.98 × 21,894.58
  4. Step 4: Simplify right side
    39,798.22x = 1,202,515,579.45
  5. Step 5: Solve for x
    x = 1,202,515,579.45/39,798.22
  6. Step 6: Final answer
    x = 30,215.31

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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.