Home / 39,608.16-54,660.53-21,704.31

Finding the Fourth Proportional to 39,608.16, 54,660.53 and 21,704.31

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Solution

The fourth proportional to 39,608.16, 54,660.53 and 21,704.31 is: 29,952.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,608.16 : 54,660.53 = 21,704.31 : x
  2. Step 2: Convert to fraction form
    39,608.16/54,660.53 = 21,704.31/x
  3. Step 3: Cross multiply
    39,608.16x = 54,660.53 × 21,704.31
  4. Step 4: Simplify right side
    39,608.16x = 1,186,369,087.88
  5. Step 5: Solve for x
    x = 1,186,369,087.88/39,608.16
  6. Step 6: Final answer
    x = 29,952.64

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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.