Home / 21,198.18-29,246.73-12,244.50

Finding the Fourth Proportional to 21,198.18, 29,246.73 and 12,244.50

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Solution

The fourth proportional to 21,198.18, 29,246.73 and 12,244.50 is: 16,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.18 : 29,246.73 = 12,244.50 : x
  2. Step 2: Convert to fraction form
    21,198.18/29,246.73 = 12,244.50/x
  3. Step 3: Cross multiply
    21,198.18x = 29,246.73 × 12,244.50
  4. Step 4: Simplify right side
    21,198.18x = 358,111,585.49
  5. Step 5: Solve for x
    x = 358,111,585.49/21,198.18
  6. Step 6: Final answer
    x = 16,893.51

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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.