Home / 39,664.38-54,735.03-21,759.00

Finding the Fourth Proportional to 39,664.38, 54,735.03 and 21,759.00

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Solution

The fourth proportional to 39,664.38, 54,735.03 and 21,759.00 is: 30,026.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,664.38 : 54,735.03 = 21,759.00 : x
  2. Step 2: Convert to fraction form
    39,664.38/54,735.03 = 21,759.00/x
  3. Step 3: Cross multiply
    39,664.38x = 54,735.03 × 21,759.00
  4. Step 4: Simplify right side
    39,664.38x = 1,190,979,397.37
  5. Step 5: Solve for x
    x = 1,190,979,397.37/39,664.38
  6. Step 6: Final answer
    x = 30,026.42

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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.