Home / 39,681.26-54,760.55-21,777.42

Finding the Fourth Proportional to 39,681.26, 54,760.55 and 21,777.42

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Solution

The fourth proportional to 39,681.26, 54,760.55 and 21,777.42 is: 30,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,681.26 : 54,760.55 = 21,777.42 : x
  2. Step 2: Convert to fraction form
    39,681.26/54,760.55 = 21,777.42/x
  3. Step 3: Cross multiply
    39,681.26x = 54,760.55 × 21,777.42
  4. Step 4: Simplify right side
    39,681.26x = 1,192,543,387.89
  5. Step 5: Solve for x
    x = 1,192,543,387.89/39,681.26
  6. Step 6: Final answer
    x = 30,053.07

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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.