Home / 39,201.51-54,099.09-21,297.54

Finding the Fourth Proportional to 39,201.51, 54,099.09 and 21,297.54

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Solution

The fourth proportional to 39,201.51, 54,099.09 and 21,297.54 is: 29,391.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,201.51 : 54,099.09 = 21,297.54 : x
  2. Step 2: Convert to fraction form
    39,201.51/54,099.09 = 21,297.54/x
  3. Step 3: Cross multiply
    39,201.51x = 54,099.09 × 21,297.54
  4. Step 4: Simplify right side
    39,201.51x = 1,152,177,533.24
  5. Step 5: Solve for x
    x = 1,152,177,533.24/39,201.51
  6. Step 6: Final answer
    x = 29,391.15

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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.