Home / 34,170.68-47,160.73-20,739.34

Finding the Fourth Proportional to 34,170.68, 47,160.73 and 20,739.34

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Solution

The fourth proportional to 34,170.68, 47,160.73 and 20,739.34 is: 28,623.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,170.68 : 47,160.73 = 20,739.34 : x
  2. Step 2: Convert to fraction form
    34,170.68/47,160.73 = 20,739.34/x
  3. Step 3: Cross multiply
    34,170.68x = 47,160.73 × 20,739.34
  4. Step 4: Simplify right side
    34,170.68x = 978,082,414.12
  5. Step 5: Solve for x
    x = 978,082,414.12/34,170.68
  6. Step 6: Final answer
    x = 28,623.44

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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.