Home / 20,162.87-27,824.61-11,210.20

Finding the Fourth Proportional to 20,162.87, 27,824.61 and 11,210.20

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Solution

The fourth proportional to 20,162.87, 27,824.61 and 11,210.20 is: 15,469.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.87 : 27,824.61 = 11,210.20 : x
  2. Step 2: Convert to fraction form
    20,162.87/27,824.61 = 11,210.20/x
  3. Step 3: Cross multiply
    20,162.87x = 27,824.61 × 11,210.20
  4. Step 4: Simplify right side
    20,162.87x = 311,919,415.50
  5. Step 5: Solve for x
    x = 311,919,415.50/20,162.87
  6. Step 6: Final answer
    x = 15,469.99

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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.