Home / 20,316.08-30,482.22-7,169.78

Finding the Fourth Proportional to 20,316.08, 30,482.22 and 7,169.78

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Solution

The fourth proportional to 20,316.08, 30,482.22 and 7,169.78 is: 10,757.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.08 : 30,482.22 = 7,169.78 : x
  2. Step 2: Convert to fraction form
    20,316.08/30,482.22 = 7,169.78/x
  3. Step 3: Cross multiply
    20,316.08x = 30,482.22 × 7,169.78
  4. Step 4: Simplify right side
    20,316.08x = 218,550,811.31
  5. Step 5: Solve for x
    x = 218,550,811.31/20,316.08
  6. Step 6: Final answer
    x = 10,757.53

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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.