Home / 38,168.86-52,676.20-21,178.60

Finding the Fourth Proportional to 38,168.86, 52,676.20 and 21,178.60

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Solution

The fourth proportional to 38,168.86, 52,676.20 and 21,178.60 is: 29,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,168.86 : 52,676.20 = 21,178.60 : x
  2. Step 2: Convert to fraction form
    38,168.86/52,676.20 = 21,178.60/x
  3. Step 3: Cross multiply
    38,168.86x = 52,676.20 × 21,178.60
  4. Step 4: Simplify right side
    38,168.86x = 1,115,608,169.32
  5. Step 5: Solve for x
    x = 1,115,608,169.32/38,168.86
  6. Step 6: Final answer
    x = 29,228.23

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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.