Home / 30,295.86-45,428.68-19,194.09

Finding the Fourth Proportional to 30,295.86, 45,428.68 and 19,194.09

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Solution

The fourth proportional to 30,295.86, 45,428.68 and 19,194.09 is: 28,781.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.86 : 45,428.68 = 19,194.09 : x
  2. Step 2: Convert to fraction form
    30,295.86/45,428.68 = 19,194.09/x
  3. Step 3: Cross multiply
    30,295.86x = 45,428.68 × 19,194.09
  4. Step 4: Simplify right side
    30,295.86x = 871,962,172.50
  5. Step 5: Solve for x
    x = 871,962,172.50/30,295.86
  6. Step 6: Final answer
    x = 28,781.56

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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.