Home / 20,419.58-30,626.39-6,376.34

Finding the Fourth Proportional to 20,419.58, 30,626.39 and 6,376.34

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Solution

The fourth proportional to 20,419.58, 30,626.39 and 6,376.34 is: 9,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419.58 : 30,626.39 = 6,376.34 : x
  2. Step 2: Convert to fraction form
    20,419.58/30,626.39 = 6,376.34/x
  3. Step 3: Cross multiply
    20,419.58x = 30,626.39 × 6,376.34
  4. Step 4: Simplify right side
    20,419.58x = 195,284,368.12
  5. Step 5: Solve for x
    x = 195,284,368.12/20,419.58
  6. Step 6: Final answer
    x = 9,563.58

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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.