Home / 18,548.24-27,840.57-13,603.79

Finding the Fourth Proportional to 18,548.24, 27,840.57 and 13,603.79

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Solution

The fourth proportional to 18,548.24, 27,840.57 and 13,603.79 is: 20,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,548.24 : 27,840.57 = 13,603.79 : x
  2. Step 2: Convert to fraction form
    18,548.24/27,840.57 = 13,603.79/x
  3. Step 3: Cross multiply
    18,548.24x = 27,840.57 × 13,603.79
  4. Step 4: Simplify right side
    18,548.24x = 378,737,128.56
  5. Step 5: Solve for x
    x = 378,737,128.56/18,548.24
  6. Step 6: Final answer
    x = 20,419.04

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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.