Home / 39,599.90-54,647.84-21,696.02

Finding the Fourth Proportional to 39,599.90, 54,647.84 and 21,696.02

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Solution

The fourth proportional to 39,599.90, 54,647.84 and 21,696.02 is: 29,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,599.90 : 54,647.84 = 21,696.02 : x
  2. Step 2: Convert to fraction form
    39,599.90/54,647.84 = 21,696.02/x
  3. Step 3: Cross multiply
    39,599.90x = 54,647.84 × 21,696.02
  4. Step 4: Simplify right side
    39,599.90x = 1,185,640,629.60
  5. Step 5: Solve for x
    x = 1,185,640,629.60/39,599.90
  6. Step 6: Final answer
    x = 29,940.50

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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.