Home / 20,668.41-31,004.46-7,517.25

Finding the Fourth Proportional to 20,668.41, 31,004.46 and 7,517.25

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Solution

The fourth proportional to 20,668.41, 31,004.46 and 7,517.25 is: 11,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.41 : 31,004.46 = 7,517.25 : x
  2. Step 2: Convert to fraction form
    20,668.41/31,004.46 = 7,517.25/x
  3. Step 3: Cross multiply
    20,668.41x = 31,004.46 × 7,517.25
  4. Step 4: Simplify right side
    20,668.41x = 233,068,276.94
  5. Step 5: Solve for x
    x = 233,068,276.94/20,668.41
  6. Step 6: Final answer
    x = 11,276.55

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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.