Home / 20,209.10-27,884.86-11,256.37

Finding the Fourth Proportional to 20,209.10, 27,884.86 and 11,256.37

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Solution

The fourth proportional to 20,209.10, 27,884.86 and 11,256.37 is: 15,531.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.10 : 27,884.86 = 11,256.37 : x
  2. Step 2: Convert to fraction form
    20,209.10/27,884.86 = 11,256.37/x
  3. Step 3: Cross multiply
    20,209.10x = 27,884.86 × 11,256.37
  4. Step 4: Simplify right side
    20,209.10x = 313,882,203.71
  5. Step 5: Solve for x
    x = 313,882,203.71/20,209.10
  6. Step 6: Final answer
    x = 15,531.73

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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.