Home / 20,258.42-30,378.20-6,214.83

Finding the Fourth Proportional to 20,258.42, 30,378.20 and 6,214.83

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Solution

The fourth proportional to 20,258.42, 30,378.20 and 6,214.83 is: 9,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.42 : 30,378.20 = 6,214.83 : x
  2. Step 2: Convert to fraction form
    20,258.42/30,378.20 = 6,214.83/x
  3. Step 3: Cross multiply
    20,258.42x = 30,378.20 × 6,214.83
  4. Step 4: Simplify right side
    20,258.42x = 188,795,317.63
  5. Step 5: Solve for x
    x = 188,795,317.63/20,258.42
  6. Step 6: Final answer
    x = 9,319.35

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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.