Home / 39,735.94-54,835.38-21,586.54

Finding the Fourth Proportional to 39,735.94, 54,835.38 and 21,586.54

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Solution

The fourth proportional to 39,735.94, 54,835.38 and 21,586.54 is: 29,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,735.94 : 54,835.38 = 21,586.54 : x
  2. Step 2: Convert to fraction form
    39,735.94/54,835.38 = 21,586.54/x
  3. Step 3: Cross multiply
    39,735.94x = 54,835.38 × 21,586.54
  4. Step 4: Simplify right side
    39,735.94x = 1,183,706,123.79
  5. Step 5: Solve for x
    x = 1,183,706,123.79/39,735.94
  6. Step 6: Final answer
    x = 29,789.31

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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.