Home / 20,160.33-27,822.18-11,208.75

Finding the Fourth Proportional to 20,160.33, 27,822.18 and 11,208.75

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Solution

The fourth proportional to 20,160.33, 27,822.18 and 11,208.75 is: 15,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.33 : 27,822.18 = 11,208.75 : x
  2. Step 2: Convert to fraction form
    20,160.33/27,822.18 = 11,208.75/x
  3. Step 3: Cross multiply
    20,160.33x = 27,822.18 × 11,208.75
  4. Step 4: Simplify right side
    20,160.33x = 311,851,860.08
  5. Step 5: Solve for x
    x = 311,851,860.08/20,160.33
  6. Step 6: Final answer
    x = 15,468.59

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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.