Home / 39,681.92-54,760.88-21,777.23

Finding the Fourth Proportional to 39,681.92, 54,760.88 and 21,777.23

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Solution

The fourth proportional to 39,681.92, 54,760.88 and 21,777.23 is: 30,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,681.92 : 54,760.88 = 21,777.23 : x
  2. Step 2: Convert to fraction form
    39,681.92/54,760.88 = 21,777.23/x
  3. Step 3: Cross multiply
    39,681.92x = 54,760.88 × 21,777.23
  4. Step 4: Simplify right side
    39,681.92x = 1,192,539,896.07
  5. Step 5: Solve for x
    x = 1,192,539,896.07/39,681.92
  6. Step 6: Final answer
    x = 30,052.48

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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.