Home / 20,029.38-27,639.71-10,954.60

Finding the Fourth Proportional to 20,029.38, 27,639.71 and 10,954.60

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Solution

The fourth proportional to 20,029.38, 27,639.71 and 10,954.60 is: 15,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.38 : 27,639.71 = 10,954.60 : x
  2. Step 2: Convert to fraction form
    20,029.38/27,639.71 = 10,954.60/x
  3. Step 3: Cross multiply
    20,029.38x = 27,639.71 × 10,954.60
  4. Step 4: Simplify right side
    20,029.38x = 302,781,828.97
  5. Step 5: Solve for x
    x = 302,781,828.97/20,029.38
  6. Step 6: Final answer
    x = 15,116.88

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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.