Home / 18,404.19-27,620.28-13,486.68

Finding the Fourth Proportional to 18,404.19, 27,620.28 and 13,486.68

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Solution

The fourth proportional to 18,404.19, 27,620.28 and 13,486.68 is: 20,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.19 : 27,620.28 = 13,486.68 : x
  2. Step 2: Convert to fraction form
    18,404.19/27,620.28 = 13,486.68/x
  3. Step 3: Cross multiply
    18,404.19x = 27,620.28 × 13,486.68
  4. Step 4: Simplify right side
    18,404.19x = 372,505,877.87
  5. Step 5: Solve for x
    x = 372,505,877.87/18,404.19
  6. Step 6: Final answer
    x = 20,240.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.