Home / 20,163.51-27,823.53-11,209.57

Finding the Fourth Proportional to 20,163.51, 27,823.53 and 11,209.57

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Solution

The fourth proportional to 20,163.51, 27,823.53 and 11,209.57 is: 15,468.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.51 : 27,823.53 = 11,209.57 : x
  2. Step 2: Convert to fraction form
    20,163.51/27,823.53 = 11,209.57/x
  3. Step 3: Cross multiply
    20,163.51x = 27,823.53 × 11,209.57
  4. Step 4: Simplify right side
    20,163.51x = 311,889,807.18
  5. Step 5: Solve for x
    x = 311,889,807.18/20,163.51
  6. Step 6: Final answer
    x = 15,468.03

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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.