Home / 35,442.56-48,912.78-20,335.12

Finding the Fourth Proportional to 35,442.56, 48,912.78 and 20,335.12

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Solution

The fourth proportional to 35,442.56, 48,912.78 and 20,335.12 is: 28,063.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,442.56 : 48,912.78 = 20,335.12 : x
  2. Step 2: Convert to fraction form
    35,442.56/48,912.78 = 20,335.12/x
  3. Step 3: Cross multiply
    35,442.56x = 48,912.78 × 20,335.12
  4. Step 4: Simplify right side
    35,442.56x = 994,647,250.83
  5. Step 5: Solve for x
    x = 994,647,250.83/35,442.56
  6. Step 6: Final answer
    x = 28,063.64

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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.