Home / 13,931.67-20,897.44-3,401.75

Finding the Fourth Proportional to 13,931.67, 20,897.44 and 3,401.75

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Solution

The fourth proportional to 13,931.67, 20,897.44 and 3,401.75 is: 5,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.67 : 20,897.44 = 3,401.75 : x
  2. Step 2: Convert to fraction form
    13,931.67/20,897.44 = 3,401.75/x
  3. Step 3: Cross multiply
    13,931.67x = 20,897.44 × 3,401.75
  4. Step 4: Simplify right side
    13,931.67x = 71,087,910.26
  5. Step 5: Solve for x
    x = 71,087,910.26/13,931.67
  6. Step 6: Final answer
    x = 5,102.61

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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.