Home / 23,148.39-34,709.20-20,380.62

Finding the Fourth Proportional to 23,148.39, 34,709.20 and 20,380.62

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Solution

The fourth proportional to 23,148.39, 34,709.20 and 20,380.62 is: 30,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,148.39 : 34,709.20 = 20,380.62 : x
  2. Step 2: Convert to fraction form
    23,148.39/34,709.20 = 20,380.62/x
  3. Step 3: Cross multiply
    23,148.39x = 34,709.20 × 20,380.62
  4. Step 4: Simplify right side
    23,148.39x = 707,395,015.70
  5. Step 5: Solve for x
    x = 707,395,015.70/23,148.39
  6. Step 6: Final answer
    x = 30,559.15

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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.