Home / 30,190.82-45,286.20-19,800.14

Finding the Fourth Proportional to 30,190.82, 45,286.20 and 19,800.14

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Solution

The fourth proportional to 30,190.82, 45,286.20 and 19,800.14 is: 29,700.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.82 : 45,286.20 = 19,800.14 : x
  2. Step 2: Convert to fraction form
    30,190.82/45,286.20 = 19,800.14/x
  3. Step 3: Cross multiply
    30,190.82x = 45,286.20 × 19,800.14
  4. Step 4: Simplify right side
    30,190.82x = 896,673,100.07
  5. Step 5: Solve for x
    x = 896,673,100.07/30,190.82
  6. Step 6: Final answer
    x = 29,700.19

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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.