Home / 14,231.92-21,370.92-13,632.88

Finding the Fourth Proportional to 14,231.92, 21,370.92 and 13,632.88

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Solution

The fourth proportional to 14,231.92, 21,370.92 and 13,632.88 is: 20,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.92 : 21,370.92 = 13,632.88 : x
  2. Step 2: Convert to fraction form
    14,231.92/21,370.92 = 13,632.88/x
  3. Step 3: Cross multiply
    14,231.92x = 21,370.92 × 13,632.88
  4. Step 4: Simplify right side
    14,231.92x = 291,347,187.85
  5. Step 5: Solve for x
    x = 291,347,187.85/14,231.92
  6. Step 6: Final answer
    x = 20,471.39

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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.