Home / 21,195.63-29,250.45-11,764.80

Finding the Fourth Proportional to 21,195.63, 29,250.45 and 11,764.80

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Solution

The fourth proportional to 21,195.63, 29,250.45 and 11,764.80 is: 16,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.63 : 29,250.45 = 11,764.80 : x
  2. Step 2: Convert to fraction form
    21,195.63/29,250.45 = 11,764.80/x
  3. Step 3: Cross multiply
    21,195.63x = 29,250.45 × 11,764.80
  4. Step 4: Simplify right side
    21,195.63x = 344,125,694.16
  5. Step 5: Solve for x
    x = 344,125,694.16/21,195.63
  6. Step 6: Final answer
    x = 16,235.69

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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.