Home / 20,163.28-27,823.74-11,210.24

Finding the Fourth Proportional to 20,163.28, 27,823.74 and 11,210.24

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Solution

The fourth proportional to 20,163.28, 27,823.74 and 11,210.24 is: 15,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.28 : 27,823.74 = 11,210.24 : x
  2. Step 2: Convert to fraction form
    20,163.28/27,823.74 = 11,210.24/x
  3. Step 3: Cross multiply
    20,163.28x = 27,823.74 × 11,210.24
  4. Step 4: Simplify right side
    20,163.28x = 311,910,803.10
  5. Step 5: Solve for x
    x = 311,910,803.10/20,163.28
  6. Step 6: Final answer
    x = 15,469.25

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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.