Home / 20,696.08-28,558.92-14,422

Finding the Fourth Proportional to 20,696.08, 28,558.92 and 14,422

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Solution

The fourth proportional to 20,696.08, 28,558.92 and 14,422 is: 19,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.08 : 28,558.92 = 14,422 : x
  2. Step 2: Convert to fraction form
    20,696.08/28,558.92 = 14,422/x
  3. Step 3: Cross multiply
    20,696.08x = 28,558.92 × 14,422
  4. Step 4: Simplify right side
    20,696.08x = 411,876,744.24
  5. Step 5: Solve for x
    x = 411,876,744.24/20,696.08
  6. Step 6: Final answer
    x = 19,901.20

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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.