Home / 20,616.12-30,926.61-11,851.11

Finding the Fourth Proportional to 20,616.12, 30,926.61 and 11,851.11

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Solution

The fourth proportional to 20,616.12, 30,926.61 and 11,851.11 is: 17,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.12 : 30,926.61 = 11,851.11 : x
  2. Step 2: Convert to fraction form
    20,616.12/30,926.61 = 11,851.11/x
  3. Step 3: Cross multiply
    20,616.12x = 30,926.61 × 11,851.11
  4. Step 4: Simplify right side
    20,616.12x = 366,514,657.04
  5. Step 5: Solve for x
    x = 366,514,657.04/20,616.12
  6. Step 6: Final answer
    x = 17,778.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.