Home / 20,486.00-30,729.11-6,445.46

Finding the Fourth Proportional to 20,486.00, 30,729.11 and 6,445.46

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Solution

The fourth proportional to 20,486.00, 30,729.11 and 6,445.46 is: 9,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486.00 : 30,729.11 = 6,445.46 : x
  2. Step 2: Convert to fraction form
    20,486.00/30,729.11 = 6,445.46/x
  3. Step 3: Cross multiply
    20,486.00x = 30,729.11 × 6,445.46
  4. Step 4: Simplify right side
    20,486.00x = 198,063,293.94
  5. Step 5: Solve for x
    x = 198,063,293.94/20,486.00
  6. Step 6: Final answer
    x = 9,668.23

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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.