Home / 30,022.11-41,447.39-19,964.25

Finding the Fourth Proportional to 30,022.11, 41,447.39 and 19,964.25

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Solution

The fourth proportional to 30,022.11, 41,447.39 and 19,964.25 is: 27,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,022.11 : 41,447.39 = 19,964.25 : x
  2. Step 2: Convert to fraction form
    30,022.11/41,447.39 = 19,964.25/x
  3. Step 3: Cross multiply
    30,022.11x = 41,447.39 × 19,964.25
  4. Step 4: Simplify right side
    30,022.11x = 827,465,955.99
  5. Step 5: Solve for x
    x = 827,465,955.99/30,022.11
  6. Step 6: Final answer
    x = 27,561.89

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Double scale
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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.