Home / 27,954.31-38,579.66-20,868.43

Finding the Fourth Proportional to 27,954.31, 38,579.66 and 20,868.43

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Solution

The fourth proportional to 27,954.31, 38,579.66 and 20,868.43 is: 28,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,954.31 : 38,579.66 = 20,868.43 : x
  2. Step 2: Convert to fraction form
    27,954.31/38,579.66 = 20,868.43/x
  3. Step 3: Cross multiply
    27,954.31x = 38,579.66 × 20,868.43
  4. Step 4: Simplify right side
    27,954.31x = 805,096,934.13
  5. Step 5: Solve for x
    x = 805,096,934.13/27,954.31
  6. Step 6: Final answer
    x = 28,800.46

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Similar ratio
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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.