Home / 30,520.56-45,698.81-19,366.86

Finding the Fourth Proportional to 30,520.56, 45,698.81 and 19,366.86

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Solution

The fourth proportional to 30,520.56, 45,698.81 and 19,366.86 is: 28,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,520.56 : 45,698.81 = 19,366.86 : x
  2. Step 2: Convert to fraction form
    30,520.56/45,698.81 = 19,366.86/x
  3. Step 3: Cross multiply
    30,520.56x = 45,698.81 × 19,366.86
  4. Step 4: Simplify right side
    30,520.56x = 885,042,503.85
  5. Step 5: Solve for x
    x = 885,042,503.85/30,520.56
  6. Step 6: Final answer
    x = 28,998.24

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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.