Home / 30,243.22-41,729.18-20,556.03

Finding the Fourth Proportional to 30,243.22, 41,729.18 and 20,556.03

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Solution

The fourth proportional to 30,243.22, 41,729.18 and 20,556.03 is: 28,362.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.22 : 41,729.18 = 20,556.03 : x
  2. Step 2: Convert to fraction form
    30,243.22/41,729.18 = 20,556.03/x
  3. Step 3: Cross multiply
    30,243.22x = 41,729.18 × 20,556.03
  4. Step 4: Simplify right side
    30,243.22x = 857,786,094.93
  5. Step 5: Solve for x
    x = 857,786,094.93/30,243.22
  6. Step 6: Final answer
    x = 28,362.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.