Home / 20,166.67-30,242.67-7,690.15

Finding the Fourth Proportional to 20,166.67, 30,242.67 and 7,690.15

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Solution

The fourth proportional to 20,166.67, 30,242.67 and 7,690.15 is: 11,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.67 : 30,242.67 = 7,690.15 : x
  2. Step 2: Convert to fraction form
    20,166.67/30,242.67 = 7,690.15/x
  3. Step 3: Cross multiply
    20,166.67x = 30,242.67 × 7,690.15
  4. Step 4: Simplify right side
    20,166.67x = 232,570,668.70
  5. Step 5: Solve for x
    x = 232,570,668.70/20,166.67
  6. Step 6: Final answer
    x = 11,532.43

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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.