Home / 20,469.14-30,703.60-17,687.35

Finding the Fourth Proportional to 20,469.14, 30,703.60 and 17,687.35

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Solution

The fourth proportional to 20,469.14, 30,703.60 and 17,687.35 is: 26,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.14 : 30,703.60 = 17,687.35 : x
  2. Step 2: Convert to fraction form
    20,469.14/30,703.60 = 17,687.35/x
  3. Step 3: Cross multiply
    20,469.14x = 30,703.60 × 17,687.35
  4. Step 4: Simplify right side
    20,469.14x = 543,065,319.46
  5. Step 5: Solve for x
    x = 543,065,319.46/20,469.14
  6. Step 6: Final answer
    x = 26,530.93

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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.