Home / 14,149.35-21,221.28-13,446.90

Finding the Fourth Proportional to 14,149.35, 21,221.28 and 13,446.90

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Solution

The fourth proportional to 14,149.35, 21,221.28 and 13,446.90 is: 20,167.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.35 : 21,221.28 = 13,446.90 : x
  2. Step 2: Convert to fraction form
    14,149.35/21,221.28 = 13,446.90/x
  3. Step 3: Cross multiply
    14,149.35x = 21,221.28 × 13,446.90
  4. Step 4: Simplify right side
    14,149.35x = 285,360,430.03
  5. Step 5: Solve for x
    x = 285,360,430.03/14,149.35
  6. Step 6: Final answer
    x = 20,167.74

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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.