Home / 14,234.20-21,351.30-13,427.80

Finding the Fourth Proportional to 14,234.20, 21,351.30 and 13,427.80

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Solution

The fourth proportional to 14,234.20, 21,351.30 and 13,427.80 is: 20,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,234.20 : 21,351.30 = 13,427.80 : x
  2. Step 2: Convert to fraction form
    14,234.20/21,351.30 = 13,427.80/x
  3. Step 3: Cross multiply
    14,234.20x = 21,351.30 × 13,427.80
  4. Step 4: Simplify right side
    14,234.20x = 286,700,986.14
  5. Step 5: Solve for x
    x = 286,700,986.14/14,234.20
  6. Step 6: Final answer
    x = 20,141.70

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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.