Home / 20,568.57-28,387.14-11,616.45

Finding the Fourth Proportional to 20,568.57, 28,387.14 and 11,616.45

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Solution

The fourth proportional to 20,568.57, 28,387.14 and 11,616.45 is: 16,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.57 : 28,387.14 = 11,616.45 : x
  2. Step 2: Convert to fraction form
    20,568.57/28,387.14 = 11,616.45/x
  3. Step 3: Cross multiply
    20,568.57x = 28,387.14 × 11,616.45
  4. Step 4: Simplify right side
    20,568.57x = 329,757,792.45
  5. Step 5: Solve for x
    x = 329,757,792.45/20,568.57
  6. Step 6: Final answer
    x = 16,032.12

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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.