Home / 14,156.38-21,231.78-13,453.90

Finding the Fourth Proportional to 14,156.38, 21,231.78 and 13,453.90

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Solution

The fourth proportional to 14,156.38, 21,231.78 and 13,453.90 is: 20,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.38 : 21,231.78 = 13,453.90 : x
  2. Step 2: Convert to fraction form
    14,156.38/21,231.78 = 13,453.90/x
  3. Step 3: Cross multiply
    14,156.38x = 21,231.78 × 13,453.90
  4. Step 4: Simplify right side
    14,156.38x = 285,650,244.94
  5. Step 5: Solve for x
    x = 285,650,244.94/14,156.38
  6. Step 6: Final answer
    x = 20,178.20

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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.