Home / 20,305.40-30,452.26-7,824.44

Finding the Fourth Proportional to 20,305.40, 30,452.26 and 7,824.44

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Solution

The fourth proportional to 20,305.40, 30,452.26 and 7,824.44 is: 11,734.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.40 : 30,452.26 = 7,824.44 : x
  2. Step 2: Convert to fraction form
    20,305.40/30,452.26 = 7,824.44/x
  3. Step 3: Cross multiply
    20,305.40x = 30,452.26 × 7,824.44
  4. Step 4: Simplify right side
    20,305.40x = 238,271,881.23
  5. Step 5: Solve for x
    x = 238,271,881.23/20,305.40
  6. Step 6: Final answer
    x = 11,734.41

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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.