Home / 30,402.14-41,955.66-19,072.12

Finding the Fourth Proportional to 30,402.14, 41,955.66 and 19,072.12

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Solution

The fourth proportional to 30,402.14, 41,955.66 and 19,072.12 is: 26,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402.14 : 41,955.66 = 19,072.12 : x
  2. Step 2: Convert to fraction form
    30,402.14/41,955.66 = 19,072.12/x
  3. Step 3: Cross multiply
    30,402.14x = 41,955.66 × 19,072.12
  4. Step 4: Simplify right side
    30,402.14x = 800,183,382.20
  5. Step 5: Solve for x
    x = 800,183,382.20/30,402.14
  6. Step 6: Final answer
    x = 26,319.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.