Home / 19,578.26-29,514.11-18,274.79

Finding the Fourth Proportional to 19,578.26, 29,514.11 and 18,274.79

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Solution

The fourth proportional to 19,578.26, 29,514.11 and 18,274.79 is: 27,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.26 : 29,514.11 = 18,274.79 : x
  2. Step 2: Convert to fraction form
    19,578.26/29,514.11 = 18,274.79/x
  3. Step 3: Cross multiply
    19,578.26x = 29,514.11 × 18,274.79
  4. Step 4: Simplify right side
    19,578.26x = 539,364,144.70
  5. Step 5: Solve for x
    x = 539,364,144.70/19,578.26
  6. Step 6: Final answer
    x = 27,549.13

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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.