Home / 20,162.43-27,822.56-11,209.41

Finding the Fourth Proportional to 20,162.43, 27,822.56 and 11,209.41

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Solution

The fourth proportional to 20,162.43, 27,822.56 and 11,209.41 is: 15,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.43 : 27,822.56 = 11,209.41 : x
  2. Step 2: Convert to fraction form
    20,162.43/27,822.56 = 11,209.41/x
  3. Step 3: Cross multiply
    20,162.43x = 27,822.56 × 11,209.41
  4. Step 4: Simplify right side
    20,162.43x = 311,874,426.24
  5. Step 5: Solve for x
    x = 311,874,426.24/20,162.43
  6. Step 6: Final answer
    x = 15,468.10

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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.