Home / 30,195.32-45,269.15-19,078.54

Finding the Fourth Proportional to 30,195.32, 45,269.15 and 19,078.54

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Solution

The fourth proportional to 30,195.32, 45,269.15 and 19,078.54 is: 28,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,195.32 : 45,269.15 = 19,078.54 : x
  2. Step 2: Convert to fraction form
    30,195.32/45,269.15 = 19,078.54/x
  3. Step 3: Cross multiply
    30,195.32x = 45,269.15 × 19,078.54
  4. Step 4: Simplify right side
    30,195.32x = 863,669,080.48
  5. Step 5: Solve for x
    x = 863,669,080.48/30,195.32
  6. Step 6: Final answer
    x = 28,602.75

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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.