Home / 21,092.49-29,107.81-11,532.57

Finding the Fourth Proportional to 21,092.49, 29,107.81 and 11,532.57

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Solution

The fourth proportional to 21,092.49, 29,107.81 and 11,532.57 is: 15,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.49 : 29,107.81 = 11,532.57 : x
  2. Step 2: Convert to fraction form
    21,092.49/29,107.81 = 11,532.57/x
  3. Step 3: Cross multiply
    21,092.49x = 29,107.81 × 11,532.57
  4. Step 4: Simplify right side
    21,092.49x = 335,687,778.63
  5. Step 5: Solve for x
    x = 335,687,778.63/21,092.49
  6. Step 6: Final answer
    x = 15,915.04

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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.