Home / 18,419.04-27,640.37-18,351

Finding the Fourth Proportional to 18,419.04, 27,640.37 and 18,351

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Solution

The fourth proportional to 18,419.04, 27,640.37 and 18,351 is: 27,538.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.04 : 27,640.37 = 18,351 : x
  2. Step 2: Convert to fraction form
    18,419.04/27,640.37 = 18,351/x
  3. Step 3: Cross multiply
    18,419.04x = 27,640.37 × 18,351
  4. Step 4: Simplify right side
    18,419.04x = 507,228,475.75
  5. Step 5: Solve for x
    x = 507,228,475.75/18,419.04
  6. Step 6: Final answer
    x = 27,538.27

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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.