Home / 21,863.00-30,180.87-14,309.69

Finding the Fourth Proportional to 21,863.00, 30,180.87 and 14,309.69

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Solution

The fourth proportional to 21,863.00, 30,180.87 and 14,309.69 is: 19,753.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.00 : 30,180.87 = 14,309.69 : x
  2. Step 2: Convert to fraction form
    21,863.00/30,180.87 = 14,309.69/x
  3. Step 3: Cross multiply
    21,863.00x = 30,180.87 × 14,309.69
  4. Step 4: Simplify right side
    21,863.00x = 431,878,742.73
  5. Step 5: Solve for x
    x = 431,878,742.73/21,863.00
  6. Step 6: Final answer
    x = 19,753.86

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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.