Home / 20,162.53-27,822.71-11,209.49

Finding the Fourth Proportional to 20,162.53, 27,822.71 and 11,209.49

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Solution

The fourth proportional to 20,162.53, 27,822.71 and 11,209.49 is: 15,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.53 : 27,822.71 = 11,209.49 : x
  2. Step 2: Convert to fraction form
    20,162.53/27,822.71 = 11,209.49/x
  3. Step 3: Cross multiply
    20,162.53x = 27,822.71 × 11,209.49
  4. Step 4: Simplify right side
    20,162.53x = 311,878,194.36
  5. Step 5: Solve for x
    x = 311,878,194.36/20,162.53
  6. Step 6: Final answer
    x = 15,468.21

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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.