Home / 19,986.18-27,589.14-13,633.74

Finding the Fourth Proportional to 19,986.18, 27,589.14 and 13,633.74

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Solution

The fourth proportional to 19,986.18, 27,589.14 and 13,633.74 is: 18,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.18 : 27,589.14 = 13,633.74 : x
  2. Step 2: Convert to fraction form
    19,986.18/27,589.14 = 13,633.74/x
  3. Step 3: Cross multiply
    19,986.18x = 27,589.14 × 13,633.74
  4. Step 4: Simplify right side
    19,986.18x = 376,143,161.58
  5. Step 5: Solve for x
    x = 376,143,161.58/19,986.18
  6. Step 6: Final answer
    x = 18,820.16

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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.