Home / 20,668.46-30,975.30-7,508.16

Finding the Fourth Proportional to 20,668.46, 30,975.30 and 7,508.16

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Solution

The fourth proportional to 20,668.46, 30,975.30 and 7,508.16 is: 11,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.46 : 30,975.30 = 7,508.16 : x
  2. Step 2: Convert to fraction form
    20,668.46/30,975.30 = 7,508.16/x
  3. Step 3: Cross multiply
    20,668.46x = 30,975.30 × 7,508.16
  4. Step 4: Simplify right side
    20,668.46x = 232,567,508.45
  5. Step 5: Solve for x
    x = 232,567,508.45/20,668.46
  6. Step 6: Final answer
    x = 11,252.29

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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.