Home / 20,484.73-30,727.68-11,129.23

Finding the Fourth Proportional to 20,484.73, 30,727.68 and 11,129.23

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Solution

The fourth proportional to 20,484.73, 30,727.68 and 11,129.23 is: 16,694.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.73 : 30,727.68 = 11,129.23 : x
  2. Step 2: Convert to fraction form
    20,484.73/30,727.68 = 11,129.23/x
  3. Step 3: Cross multiply
    20,484.73x = 30,727.68 × 11,129.23
  4. Step 4: Simplify right side
    20,484.73x = 341,975,418.09
  5. Step 5: Solve for x
    x = 341,975,418.09/20,484.73
  6. Step 6: Final answer
    x = 16,694.16

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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.