Home / 20,668.69-31,005.07-6,625.18

Finding the Fourth Proportional to 20,668.69, 31,005.07 and 6,625.18

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Solution

The fourth proportional to 20,668.69, 31,005.07 and 6,625.18 is: 9,938.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.69 : 31,005.07 = 6,625.18 : x
  2. Step 2: Convert to fraction form
    20,668.69/31,005.07 = 6,625.18/x
  3. Step 3: Cross multiply
    20,668.69x = 31,005.07 × 6,625.18
  4. Step 4: Simplify right side
    20,668.69x = 205,414,169.66
  5. Step 5: Solve for x
    x = 205,414,169.66/20,668.69
  6. Step 6: Final answer
    x = 9,938.42

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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.