Home / 18,980.28-28,471.68-5,834.88

Finding the Fourth Proportional to 18,980.28, 28,471.68 and 5,834.88

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Solution

The fourth proportional to 18,980.28, 28,471.68 and 5,834.88 is: 8,752.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980.28 : 28,471.68 = 5,834.88 : x
  2. Step 2: Convert to fraction form
    18,980.28/28,471.68 = 5,834.88/x
  3. Step 3: Cross multiply
    18,980.28x = 28,471.68 × 5,834.88
  4. Step 4: Simplify right side
    18,980.28x = 166,128,836.20
  5. Step 5: Solve for x
    x = 166,128,836.20/18,980.28
  6. Step 6: Final answer
    x = 8,752.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.