Home / 21,262.44-29,341.32-11,830.80

Finding the Fourth Proportional to 21,262.44, 29,341.32 and 11,830.80

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Solution

The fourth proportional to 21,262.44, 29,341.32 and 11,830.80 is: 16,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.44 : 29,341.32 = 11,830.80 : x
  2. Step 2: Convert to fraction form
    21,262.44/29,341.32 = 11,830.80/x
  3. Step 3: Cross multiply
    21,262.44x = 29,341.32 × 11,830.80
  4. Step 4: Simplify right side
    21,262.44x = 347,131,288.66
  5. Step 5: Solve for x
    x = 347,131,288.66/21,262.44
  6. Step 6: Final answer
    x = 16,326.03

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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.