Home / 21,077.43-29,088.36-11,645.79

Finding the Fourth Proportional to 21,077.43, 29,088.36 and 11,645.79

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Solution

The fourth proportional to 21,077.43, 29,088.36 and 11,645.79 is: 16,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.43 : 29,088.36 = 11,645.79 : x
  2. Step 2: Convert to fraction form
    21,077.43/29,088.36 = 11,645.79/x
  3. Step 3: Cross multiply
    21,077.43x = 29,088.36 × 11,645.79
  4. Step 4: Simplify right side
    21,077.43x = 338,756,932.00
  5. Step 5: Solve for x
    x = 338,756,932.00/21,077.43
  6. Step 6: Final answer
    x = 16,072.02

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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.