Home / 39,157.42-54,039.91-22,161.68

Finding the Fourth Proportional to 39,157.42, 54,039.91 and 22,161.68

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Solution

The fourth proportional to 39,157.42, 54,039.91 and 22,161.68 is: 30,584.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.42 : 54,039.91 = 22,161.68 : x
  2. Step 2: Convert to fraction form
    39,157.42/54,039.91 = 22,161.68/x
  3. Step 3: Cross multiply
    39,157.42x = 54,039.91 × 22,161.68
  4. Step 4: Simplify right side
    39,157.42x = 1,197,615,192.65
  5. Step 5: Solve for x
    x = 1,197,615,192.65/39,157.42
  6. Step 6: Final answer
    x = 30,584.63

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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.