Home / 21,244.73-29,318.49-11,685.36

Finding the Fourth Proportional to 21,244.73, 29,318.49 and 11,685.36

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Solution

The fourth proportional to 21,244.73, 29,318.49 and 11,685.36 is: 16,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.73 : 29,318.49 = 11,685.36 : x
  2. Step 2: Convert to fraction form
    21,244.73/29,318.49 = 11,685.36/x
  3. Step 3: Cross multiply
    21,244.73x = 29,318.49 × 11,685.36
  4. Step 4: Simplify right side
    21,244.73x = 342,597,110.31
  5. Step 5: Solve for x
    x = 342,597,110.31/21,244.73
  6. Step 6: Final answer
    x = 16,126.22

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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.