Home / 39,159.78-54,040.36-22,163.56

Finding the Fourth Proportional to 39,159.78, 54,040.36 and 22,163.56

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Solution

The fourth proportional to 39,159.78, 54,040.36 and 22,163.56 is: 30,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,159.78 : 54,040.36 = 22,163.56 : x
  2. Step 2: Convert to fraction form
    39,159.78/54,040.36 = 22,163.56/x
  3. Step 3: Cross multiply
    39,159.78x = 54,040.36 × 22,163.56
  4. Step 4: Simplify right side
    39,159.78x = 1,197,726,761.28
  5. Step 5: Solve for x
    x = 1,197,726,761.28/39,159.78
  6. Step 6: Final answer
    x = 30,585.64

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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.