Home / 21,191.92-29,244.26-11,631.80

Finding the Fourth Proportional to 21,191.92, 29,244.26 and 11,631.80

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Solution

The fourth proportional to 21,191.92, 29,244.26 and 11,631.80 is: 16,051.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.92 : 29,244.26 = 11,631.80 : x
  2. Step 2: Convert to fraction form
    21,191.92/29,244.26 = 11,631.80/x
  3. Step 3: Cross multiply
    21,191.92x = 29,244.26 × 11,631.80
  4. Step 4: Simplify right side
    21,191.92x = 340,163,485.66
  5. Step 5: Solve for x
    x = 340,163,485.66/21,191.92
  6. Step 6: Final answer
    x = 16,051.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.