Home / 19,853.69-29,899.40-18,082.22

Finding the Fourth Proportional to 19,853.69, 29,899.40 and 18,082.22

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Solution

The fourth proportional to 19,853.69, 29,899.40 and 18,082.22 is: 27,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.69 : 29,899.40 = 18,082.22 : x
  2. Step 2: Convert to fraction form
    19,853.69/29,899.40 = 18,082.22/x
  3. Step 3: Cross multiply
    19,853.69x = 29,899.40 × 18,082.22
  4. Step 4: Simplify right side
    19,853.69x = 540,647,288.76
  5. Step 5: Solve for x
    x = 540,647,288.76/19,853.69
  6. Step 6: Final answer
    x = 27,231.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.