Home / 39,644.51-54,710.17-21,738.44

Finding the Fourth Proportional to 39,644.51, 54,710.17 and 21,738.44

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Solution

The fourth proportional to 39,644.51, 54,710.17 and 21,738.44 is: 29,999.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644.51 : 54,710.17 = 21,738.44 : x
  2. Step 2: Convert to fraction form
    39,644.51/54,710.17 = 21,738.44/x
  3. Step 3: Cross multiply
    39,644.51x = 54,710.17 × 21,738.44
  4. Step 4: Simplify right side
    39,644.51x = 1,189,313,830.36
  5. Step 5: Solve for x
    x = 1,189,313,830.36/39,644.51
  6. Step 6: Final answer
    x = 29,999.46

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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.