Home / 21,519.25-29,698.08-12,087.82

Finding the Fourth Proportional to 21,519.25, 29,698.08 and 12,087.82

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Solution

The fourth proportional to 21,519.25, 29,698.08 and 12,087.82 is: 16,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519.25 : 29,698.08 = 12,087.82 : x
  2. Step 2: Convert to fraction form
    21,519.25/29,698.08 = 12,087.82/x
  3. Step 3: Cross multiply
    21,519.25x = 29,698.08 × 12,087.82
  4. Step 4: Simplify right side
    21,519.25x = 358,985,045.39
  5. Step 5: Solve for x
    x = 358,985,045.39/21,519.25
  6. Step 6: Final answer
    x = 16,682.04

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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.