Home / 20,245.55-30,356.51-6,914.06

Finding the Fourth Proportional to 20,245.55, 30,356.51 and 6,914.06

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Solution

The fourth proportional to 20,245.55, 30,356.51 and 6,914.06 is: 10,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.55 : 30,356.51 = 6,914.06 : x
  2. Step 2: Convert to fraction form
    20,245.55/30,356.51 = 6,914.06/x
  3. Step 3: Cross multiply
    20,245.55x = 30,356.51 × 6,914.06
  4. Step 4: Simplify right side
    20,245.55x = 209,886,659.01
  5. Step 5: Solve for x
    x = 209,886,659.01/20,245.55
  6. Step 6: Final answer
    x = 10,367.05

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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.