Home / 20,173.64-30,195.74-10,790.19

Finding the Fourth Proportional to 20,173.64, 30,195.74 and 10,790.19

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Solution

The fourth proportional to 20,173.64, 30,195.74 and 10,790.19 is: 16,150.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.64 : 30,195.74 = 10,790.19 : x
  2. Step 2: Convert to fraction form
    20,173.64/30,195.74 = 10,790.19/x
  3. Step 3: Cross multiply
    20,173.64x = 30,195.74 × 10,790.19
  4. Step 4: Simplify right side
    20,173.64x = 325,817,717.84
  5. Step 5: Solve for x
    x = 325,817,717.84/20,173.64
  6. Step 6: Final answer
    x = 16,150.67

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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.