Home / 21,651.41-29,867.93-13,151.27

Finding the Fourth Proportional to 21,651.41, 29,867.93 and 13,151.27

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Solution

The fourth proportional to 21,651.41, 29,867.93 and 13,151.27 is: 18,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.41 : 29,867.93 = 13,151.27 : x
  2. Step 2: Convert to fraction form
    21,651.41/29,867.93 = 13,151.27/x
  3. Step 3: Cross multiply
    21,651.41x = 29,867.93 × 13,151.27
  4. Step 4: Simplify right side
    21,651.41x = 392,801,211.77
  5. Step 5: Solve for x
    x = 392,801,211.77/21,651.41
  6. Step 6: Final answer
    x = 18,142.06

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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.