Home / 20,701.22-31,042.31-6,658.65

Finding the Fourth Proportional to 20,701.22, 31,042.31 and 6,658.65

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Solution

The fourth proportional to 20,701.22, 31,042.31 and 6,658.65 is: 9,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.22 : 31,042.31 = 6,658.65 : x
  2. Step 2: Convert to fraction form
    20,701.22/31,042.31 = 6,658.65/x
  3. Step 3: Cross multiply
    20,701.22x = 31,042.31 × 6,658.65
  4. Step 4: Simplify right side
    20,701.22x = 206,699,844.19
  5. Step 5: Solve for x
    x = 206,699,844.19/20,701.22
  6. Step 6: Final answer
    x = 9,984.91

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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.