Home / 20,095.94-27,732.47-11,143.41

Finding the Fourth Proportional to 20,095.94, 27,732.47 and 11,143.41

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Solution

The fourth proportional to 20,095.94, 27,732.47 and 11,143.41 is: 15,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.94 : 27,732.47 = 11,143.41 : x
  2. Step 2: Convert to fraction form
    20,095.94/27,732.47 = 11,143.41/x
  3. Step 3: Cross multiply
    20,095.94x = 27,732.47 × 11,143.41
  4. Step 4: Simplify right side
    20,095.94x = 309,034,227.81
  5. Step 5: Solve for x
    x = 309,034,227.81/20,095.94
  6. Step 6: Final answer
    x = 15,377.95

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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.