Home / 19,975.11-27,567.21-11,480.20

Finding the Fourth Proportional to 19,975.11, 27,567.21 and 11,480.20

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Solution

The fourth proportional to 19,975.11, 27,567.21 and 11,480.20 is: 15,843.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.11 : 27,567.21 = 11,480.20 : x
  2. Step 2: Convert to fraction form
    19,975.11/27,567.21 = 11,480.20/x
  3. Step 3: Cross multiply
    19,975.11x = 27,567.21 × 11,480.20
  4. Step 4: Simplify right side
    19,975.11x = 316,476,931.61
  5. Step 5: Solve for x
    x = 316,476,931.61/19,975.11
  6. Step 6: Final answer
    x = 15,843.56

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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.