Home / 21,453.38-29,605.71-11,893.42

Finding the Fourth Proportional to 21,453.38, 29,605.71 and 11,893.42

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Solution

The fourth proportional to 21,453.38, 29,605.71 and 11,893.42 is: 16,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.38 : 29,605.71 = 11,893.42 : x
  2. Step 2: Convert to fraction form
    21,453.38/29,605.71 = 11,893.42/x
  3. Step 3: Cross multiply
    21,453.38x = 29,605.71 × 11,893.42
  4. Step 4: Simplify right side
    21,453.38x = 352,113,143.43
  5. Step 5: Solve for x
    x = 352,113,143.43/21,453.38
  6. Step 6: Final answer
    x = 16,412.94

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1.5x scale

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.