Home / 20,181.43-30,255.74-7,043.03

Finding the Fourth Proportional to 20,181.43, 30,255.74 and 7,043.03

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Solution

The fourth proportional to 20,181.43, 30,255.74 and 7,043.03 is: 10,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.43 : 30,255.74 = 7,043.03 : x
  2. Step 2: Convert to fraction form
    20,181.43/30,255.74 = 7,043.03/x
  3. Step 3: Cross multiply
    20,181.43x = 30,255.74 × 7,043.03
  4. Step 4: Simplify right side
    20,181.43x = 213,092,073.08
  5. Step 5: Solve for x
    x = 213,092,073.08/20,181.43
  6. Step 6: Final answer
    x = 10,558.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.