Home / 20,704.74-31,047.54-6,662.16

Finding the Fourth Proportional to 20,704.74, 31,047.54 and 6,662.16

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Solution

The fourth proportional to 20,704.74, 31,047.54 and 6,662.16 is: 9,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.74 : 31,047.54 = 6,662.16 : x
  2. Step 2: Convert to fraction form
    20,704.74/31,047.54 = 6,662.16/x
  3. Step 3: Cross multiply
    20,704.74x = 31,047.54 × 6,662.16
  4. Step 4: Simplify right side
    20,704.74x = 206,843,679.09
  5. Step 5: Solve for x
    x = 206,843,679.09/20,704.74
  6. Step 6: Final answer
    x = 9,990.16

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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.