Home / 19,578.85-27,020.13-11,080.96

Finding the Fourth Proportional to 19,578.85, 27,020.13 and 11,080.96

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Solution

The fourth proportional to 19,578.85, 27,020.13 and 11,080.96 is: 15,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.85 : 27,020.13 = 11,080.96 : x
  2. Step 2: Convert to fraction form
    19,578.85/27,020.13 = 11,080.96/x
  3. Step 3: Cross multiply
    19,578.85x = 27,020.13 × 11,080.96
  4. Step 4: Simplify right side
    19,578.85x = 299,408,979.72
  5. Step 5: Solve for x
    x = 299,408,979.72/19,578.85
  6. Step 6: Final answer
    x = 15,292.47

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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.