Home / 20,131.07-30,195.69-6,984.46

Finding the Fourth Proportional to 20,131.07, 30,195.69 and 6,984.46

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Solution

The fourth proportional to 20,131.07, 30,195.69 and 6,984.46 is: 10,476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.07 : 30,195.69 = 6,984.46 : x
  2. Step 2: Convert to fraction form
    20,131.07/30,195.69 = 6,984.46/x
  3. Step 3: Cross multiply
    20,131.07x = 30,195.69 × 6,984.46
  4. Step 4: Simplify right side
    20,131.07x = 210,900,600.53
  5. Step 5: Solve for x
    x = 210,900,600.53/20,131.07
  6. Step 6: Final answer
    x = 10,476.38

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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.