Home / 39,600.24-54,648.30-21,696.36

Finding the Fourth Proportional to 39,600.24, 54,648.30 and 21,696.36

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Solution

The fourth proportional to 39,600.24, 54,648.30 and 21,696.36 is: 29,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600.24 : 54,648.30 = 21,696.36 : x
  2. Step 2: Convert to fraction form
    39,600.24/54,648.30 = 21,696.36/x
  3. Step 3: Cross multiply
    39,600.24x = 54,648.30 × 21,696.36
  4. Step 4: Simplify right side
    39,600.24x = 1,185,669,190.19
  5. Step 5: Solve for x
    x = 1,185,669,190.19/39,600.24
  6. Step 6: Final answer
    x = 29,940.96

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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.