Home / 20,017.89-27,625.11-11,066.38

Finding the Fourth Proportional to 20,017.89, 27,625.11 and 11,066.38

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Solution

The fourth proportional to 20,017.89, 27,625.11 and 11,066.38 is: 15,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.89 : 27,625.11 = 11,066.38 : x
  2. Step 2: Convert to fraction form
    20,017.89/27,625.11 = 11,066.38/x
  3. Step 3: Cross multiply
    20,017.89x = 27,625.11 × 11,066.38
  4. Step 4: Simplify right side
    20,017.89x = 305,709,964.80
  5. Step 5: Solve for x
    x = 305,709,964.80/20,017.89
  6. Step 6: Final answer
    x = 15,271.84

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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.