Home / 20,536.71-28,340.62-11,584.19

Finding the Fourth Proportional to 20,536.71, 28,340.62 and 11,584.19

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Solution

The fourth proportional to 20,536.71, 28,340.62 and 11,584.19 is: 15,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.71 : 28,340.62 = 11,584.19 : x
  2. Step 2: Convert to fraction form
    20,536.71/28,340.62 = 11,584.19/x
  3. Step 3: Cross multiply
    20,536.71x = 28,340.62 × 11,584.19
  4. Step 4: Simplify right side
    20,536.71x = 328,303,126.80
  5. Step 5: Solve for x
    x = 328,303,126.80/20,536.71
  6. Step 6: Final answer
    x = 15,986.16

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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.