Home / 39,644.01-54,708.26-21,738.87

Finding the Fourth Proportional to 39,644.01, 54,708.26 and 21,738.87

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Solution

The fourth proportional to 39,644.01, 54,708.26 and 21,738.87 is: 29,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644.01 : 54,708.26 = 21,738.87 : x
  2. Step 2: Convert to fraction form
    39,644.01/54,708.26 = 21,738.87/x
  3. Step 3: Cross multiply
    39,644.01x = 54,708.26 × 21,738.87
  4. Step 4: Simplify right side
    39,644.01x = 1,189,295,643.37
  5. Step 5: Solve for x
    x = 1,189,295,643.37/39,644.01
  6. Step 6: Final answer
    x = 29,999.38

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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.