Home / 38,608.31-53,279.49-21,612.58

Finding the Fourth Proportional to 38,608.31, 53,279.49 and 21,612.58

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Solution

The fourth proportional to 38,608.31, 53,279.49 and 21,612.58 is: 29,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,608.31 : 53,279.49 = 21,612.58 : x
  2. Step 2: Convert to fraction form
    38,608.31/53,279.49 = 21,612.58/x
  3. Step 3: Cross multiply
    38,608.31x = 53,279.49 × 21,612.58
  4. Step 4: Simplify right side
    38,608.31x = 1,151,507,131.92
  5. Step 5: Solve for x
    x = 1,151,507,131.92/38,608.31
  6. Step 6: Final answer
    x = 29,825.37

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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.