Home / 21,059.85-29,061.82-11,628.21

Finding the Fourth Proportional to 21,059.85, 29,061.82 and 11,628.21

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Solution

The fourth proportional to 21,059.85, 29,061.82 and 11,628.21 is: 16,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.85 : 29,061.82 = 11,628.21 : x
  2. Step 2: Convert to fraction form
    21,059.85/29,061.82 = 11,628.21/x
  3. Step 3: Cross multiply
    21,059.85x = 29,061.82 × 11,628.21
  4. Step 4: Simplify right side
    21,059.85x = 337,936,800.63
  5. Step 5: Solve for x
    x = 337,936,800.63/21,059.85
  6. Step 6: Final answer
    x = 16,046.50

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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.