Home / 20,213.11-30,316.05-7,069.25

Finding the Fourth Proportional to 20,213.11, 30,316.05 and 7,069.25

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Solution

The fourth proportional to 20,213.11, 30,316.05 and 7,069.25 is: 10,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.11 : 30,316.05 = 7,069.25 : x
  2. Step 2: Convert to fraction form
    20,213.11/30,316.05 = 7,069.25/x
  3. Step 3: Cross multiply
    20,213.11x = 30,316.05 × 7,069.25
  4. Step 4: Simplify right side
    20,213.11x = 214,311,736.46
  5. Step 5: Solve for x
    x = 214,311,736.46/20,213.11
  6. Step 6: Final answer
    x = 10,602.61

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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.