Home / 20,028.11-27,638.88-10,953.65

Finding the Fourth Proportional to 20,028.11, 27,638.88 and 10,953.65

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Solution

The fourth proportional to 20,028.11, 27,638.88 and 10,953.65 is: 15,116.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.11 : 27,638.88 = 10,953.65 : x
  2. Step 2: Convert to fraction form
    20,028.11/27,638.88 = 10,953.65/x
  3. Step 3: Cross multiply
    20,028.11x = 27,638.88 × 10,953.65
  4. Step 4: Simplify right side
    20,028.11x = 302,746,687.01
  5. Step 5: Solve for x
    x = 302,746,687.01/20,028.11
  6. Step 6: Final answer
    x = 15,116.09

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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.