Home / 20,243.60-30,369.56-8,556.88

Finding the Fourth Proportional to 20,243.60, 30,369.56 and 8,556.88

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Solution

The fourth proportional to 20,243.60, 30,369.56 and 8,556.88 is: 12,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.60 : 30,369.56 = 8,556.88 : x
  2. Step 2: Convert to fraction form
    20,243.60/30,369.56 = 8,556.88/x
  3. Step 3: Cross multiply
    20,243.60x = 30,369.56 × 8,556.88
  4. Step 4: Simplify right side
    20,243.60x = 259,868,680.57
  5. Step 5: Solve for x
    x = 259,868,680.57/20,243.60
  6. Step 6: Final answer
    x = 12,837.08

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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.