Home / 39,168.09-54,052.62-21,263.09

Finding the Fourth Proportional to 39,168.09, 54,052.62 and 21,263.09

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Solution

The fourth proportional to 39,168.09, 54,052.62 and 21,263.09 is: 29,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.09 : 54,052.62 = 21,263.09 : x
  2. Step 2: Convert to fraction form
    39,168.09/54,052.62 = 21,263.09/x
  3. Step 3: Cross multiply
    39,168.09x = 54,052.62 × 21,263.09
  4. Step 4: Simplify right side
    39,168.09x = 1,149,325,820.36
  5. Step 5: Solve for x
    x = 1,149,325,820.36/39,168.09
  6. Step 6: Final answer
    x = 29,343.42

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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.