Home / 21,326.66-29,430.83-11,895.83

Finding the Fourth Proportional to 21,326.66, 29,430.83 and 11,895.83

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Solution

The fourth proportional to 21,326.66, 29,430.83 and 11,895.83 is: 16,416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.66 : 29,430.83 = 11,895.83 : x
  2. Step 2: Convert to fraction form
    21,326.66/29,430.83 = 11,895.83/x
  3. Step 3: Cross multiply
    21,326.66x = 29,430.83 × 11,895.83
  4. Step 4: Simplify right side
    21,326.66x = 350,104,150.44
  5. Step 5: Solve for x
    x = 350,104,150.44/21,326.66
  6. Step 6: Final answer
    x = 16,416.27

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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.