Home / 38,121.20-52,606.62-20,893.40

Finding the Fourth Proportional to 38,121.20, 52,606.62 and 20,893.40

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Solution

The fourth proportional to 38,121.20, 52,606.62 and 20,893.40 is: 28,832.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.20 : 52,606.62 = 20,893.40 : x
  2. Step 2: Convert to fraction form
    38,121.20/52,606.62 = 20,893.40/x
  3. Step 3: Cross multiply
    38,121.20x = 52,606.62 × 20,893.40
  4. Step 4: Simplify right side
    38,121.20x = 1,099,131,154.31
  5. Step 5: Solve for x
    x = 1,099,131,154.31/38,121.20
  6. Step 6: Final answer
    x = 28,832.54

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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.