Home / 20,209.14-27,887.83-11,256.41

Finding the Fourth Proportional to 20,209.14, 27,887.83 and 11,256.41

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Solution

The fourth proportional to 20,209.14, 27,887.83 and 11,256.41 is: 15,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.14 : 27,887.83 = 11,256.41 : x
  2. Step 2: Convert to fraction form
    20,209.14/27,887.83 = 11,256.41/x
  3. Step 3: Cross multiply
    20,209.14x = 27,887.83 × 11,256.41
  4. Step 4: Simplify right side
    20,209.14x = 313,916,792.21
  5. Step 5: Solve for x
    x = 313,916,792.21/20,209.14
  6. Step 6: Final answer
    x = 15,533.41

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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.