Home / 20,568.30-28,382.61-11,616.67

Finding the Fourth Proportional to 20,568.30, 28,382.61 and 11,616.67

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Solution

The fourth proportional to 20,568.30, 28,382.61 and 11,616.67 is: 16,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.30 : 28,382.61 = 11,616.67 : x
  2. Step 2: Convert to fraction form
    20,568.30/28,382.61 = 11,616.67/x
  3. Step 3: Cross multiply
    20,568.30x = 28,382.61 × 11,616.67
  4. Step 4: Simplify right side
    20,568.30x = 329,711,414.11
  5. Step 5: Solve for x
    x = 329,711,414.11/20,568.30
  6. Step 6: Final answer
    x = 16,030.08

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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.