Home / 20,474.19-30,647.71-11,090.91

Finding the Fourth Proportional to 20,474.19, 30,647.71 and 11,090.91

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Solution

The fourth proportional to 20,474.19, 30,647.71 and 11,090.91 is: 16,601.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.19 : 30,647.71 = 11,090.91 : x
  2. Step 2: Convert to fraction form
    20,474.19/30,647.71 = 11,090.91/x
  3. Step 3: Cross multiply
    20,474.19x = 30,647.71 × 11,090.91
  4. Step 4: Simplify right side
    20,474.19x = 339,910,993.32
  5. Step 5: Solve for x
    x = 339,910,993.32/20,474.19
  6. Step 6: Final answer
    x = 16,601.93

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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.