Home / 34,174.06-47,165.40-20,742.73

Finding the Fourth Proportional to 34,174.06, 47,165.40 and 20,742.73

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Solution

The fourth proportional to 34,174.06, 47,165.40 and 20,742.73 is: 28,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,174.06 : 47,165.40 = 20,742.73 : x
  2. Step 2: Convert to fraction form
    34,174.06/47,165.40 = 20,742.73/x
  3. Step 3: Cross multiply
    34,174.06x = 47,165.40 × 20,742.73
  4. Step 4: Simplify right side
    34,174.06x = 978,339,157.54
  5. Step 5: Solve for x
    x = 978,339,157.54/34,174.06
  6. Step 6: Final answer
    x = 28,628.12

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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.