Home / 28,682.44-42,994.07-20,765.30

Finding the Fourth Proportional to 28,682.44, 42,994.07 and 20,765.30

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Solution

The fourth proportional to 28,682.44, 42,994.07 and 20,765.30 is: 31,126.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.44 : 42,994.07 = 20,765.30 : x
  2. Step 2: Convert to fraction form
    28,682.44/42,994.07 = 20,765.30/x
  3. Step 3: Cross multiply
    28,682.44x = 42,994.07 × 20,765.30
  4. Step 4: Simplify right side
    28,682.44x = 892,784,761.77
  5. Step 5: Solve for x
    x = 892,784,761.77/28,682.44
  6. Step 6: Final answer
    x = 31,126.53

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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.