Home / 21,576.94-29,789.82-16,531.79

Finding the Fourth Proportional to 21,576.94, 29,789.82 and 16,531.79

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Solution

The fourth proportional to 21,576.94, 29,789.82 and 16,531.79 is: 22,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.94 : 29,789.82 = 16,531.79 : x
  2. Step 2: Convert to fraction form
    21,576.94/29,789.82 = 16,531.79/x
  3. Step 3: Cross multiply
    21,576.94x = 29,789.82 × 16,531.79
  4. Step 4: Simplify right side
    21,576.94x = 492,478,899.43
  5. Step 5: Solve for x
    x = 492,478,899.43/21,576.94
  6. Step 6: Final answer
    x = 22,824.32

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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.