Home / 30,361.10-45,236.39-28,663.44

Finding the Fourth Proportional to 30,361.10, 45,236.39 and 28,663.44

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Solution

The fourth proportional to 30,361.10, 45,236.39 and 28,663.44 is: 42,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.10 : 45,236.39 = 28,663.44 : x
  2. Step 2: Convert to fraction form
    30,361.10/45,236.39 = 28,663.44/x
  3. Step 3: Cross multiply
    30,361.10x = 45,236.39 × 28,663.44
  4. Step 4: Simplify right side
    30,361.10x = 1,296,630,550.58
  5. Step 5: Solve for x
    x = 1,296,630,550.58/30,361.10
  6. Step 6: Final answer
    x = 42,706.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.