Home / 39,158.66-54,039.21-22,163.78

Finding the Fourth Proportional to 39,158.66, 54,039.21 and 22,163.78

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Solution

The fourth proportional to 39,158.66, 54,039.21 and 22,163.78 is: 30,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,158.66 : 54,039.21 = 22,163.78 : x
  2. Step 2: Convert to fraction form
    39,158.66/54,039.21 = 22,163.78/x
  3. Step 3: Cross multiply
    39,158.66x = 54,039.21 × 22,163.78
  4. Step 4: Simplify right side
    39,158.66x = 1,197,713,161.81
  5. Step 5: Solve for x
    x = 1,197,713,161.81/39,158.66
  6. Step 6: Final answer
    x = 30,586.16

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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.