Home / 19,986.03-27,567.41-12,019.88

Finding the Fourth Proportional to 19,986.03, 27,567.41 and 12,019.88

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Solution

The fourth proportional to 19,986.03, 27,567.41 and 12,019.88 is: 16,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.03 : 27,567.41 = 12,019.88 : x
  2. Step 2: Convert to fraction form
    19,986.03/27,567.41 = 12,019.88/x
  3. Step 3: Cross multiply
    19,986.03x = 27,567.41 × 12,019.88
  4. Step 4: Simplify right side
    19,986.03x = 331,356,968.93
  5. Step 5: Solve for x
    x = 331,356,968.93/19,986.03
  6. Step 6: Final answer
    x = 16,579.43

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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.