Home / 20,345.44-30,512.40-7,193.92

Finding the Fourth Proportional to 20,345.44, 30,512.40 and 7,193.92

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Solution

The fourth proportional to 20,345.44, 30,512.40 and 7,193.92 is: 10,788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.44 : 30,512.40 = 7,193.92 : x
  2. Step 2: Convert to fraction form
    20,345.44/30,512.40 = 7,193.92/x
  3. Step 3: Cross multiply
    20,345.44x = 30,512.40 × 7,193.92
  4. Step 4: Simplify right side
    20,345.44x = 219,503,764.61
  5. Step 5: Solve for x
    x = 219,503,764.61/20,345.44
  6. Step 6: Final answer
    x = 10,788.84

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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.