Home / 20,160.69-27,822.70-11,208.34

Finding the Fourth Proportional to 20,160.69, 27,822.70 and 11,208.34

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Solution

The fourth proportional to 20,160.69, 27,822.70 and 11,208.34 is: 15,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.69 : 27,822.70 = 11,208.34 : x
  2. Step 2: Convert to fraction form
    20,160.69/27,822.70 = 11,208.34/x
  3. Step 3: Cross multiply
    20,160.69x = 27,822.70 × 11,208.34
  4. Step 4: Simplify right side
    20,160.69x = 311,846,281.32
  5. Step 5: Solve for x
    x = 311,846,281.32/20,160.69
  6. Step 6: Final answer
    x = 15,468.04

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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.