Home / 35,245.32-48,638.31-20,142.60

Finding the Fourth Proportional to 35,245.32, 48,638.31 and 20,142.60

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Solution

The fourth proportional to 35,245.32, 48,638.31 and 20,142.60 is: 27,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,245.32 : 48,638.31 = 20,142.60 : x
  2. Step 2: Convert to fraction form
    35,245.32/48,638.31 = 20,142.60/x
  3. Step 3: Cross multiply
    35,245.32x = 48,638.31 × 20,142.60
  4. Step 4: Simplify right side
    35,245.32x = 979,702,023.01
  5. Step 5: Solve for x
    x = 979,702,023.01/35,245.32
  6. Step 6: Final answer
    x = 27,796.66

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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.