Home / 21,092.84-29,107.80-11,532.76

Finding the Fourth Proportional to 21,092.84, 29,107.80 and 11,532.76

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Solution

The fourth proportional to 21,092.84, 29,107.80 and 11,532.76 is: 15,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.84 : 29,107.80 = 11,532.76 : x
  2. Step 2: Convert to fraction form
    21,092.84/29,107.80 = 11,532.76/x
  3. Step 3: Cross multiply
    21,092.84x = 29,107.80 × 11,532.76
  4. Step 4: Simplify right side
    21,092.84x = 335,693,198.76
  5. Step 5: Solve for x
    x = 335,693,198.76/21,092.84
  6. Step 6: Final answer
    x = 15,915.03

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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.