Home / 18,520.86-25,570.71-16,527.99

Finding the Fourth Proportional to 18,520.86, 25,570.71 and 16,527.99

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Solution

The fourth proportional to 18,520.86, 25,570.71 and 16,527.99 is: 22,819.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.86 : 25,570.71 = 16,527.99 : x
  2. Step 2: Convert to fraction form
    18,520.86/25,570.71 = 16,527.99/x
  3. Step 3: Cross multiply
    18,520.86x = 25,570.71 × 16,527.99
  4. Step 4: Simplify right side
    18,520.86x = 422,632,439.17
  5. Step 5: Solve for x
    x = 422,632,439.17/18,520.86
  6. Step 6: Final answer
    x = 22,819.27

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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.