Home / 18,147.90-27,066.66-15,941.28

Finding the Fourth Proportional to 18,147.90, 27,066.66 and 15,941.28

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Solution

The fourth proportional to 18,147.90, 27,066.66 and 15,941.28 is: 23,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.90 : 27,066.66 = 15,941.28 : x
  2. Step 2: Convert to fraction form
    18,147.90/27,066.66 = 15,941.28/x
  3. Step 3: Cross multiply
    18,147.90x = 27,066.66 × 15,941.28
  4. Step 4: Simplify right side
    18,147.90x = 431,477,205.72
  5. Step 5: Solve for x
    x = 431,477,205.72/18,147.90
  6. Step 6: Final answer
    x = 23,775.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.