Home / 21,622.78-29,823.69-16,529.82

Finding the Fourth Proportional to 21,622.78, 29,823.69 and 16,529.82

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Solution

The fourth proportional to 21,622.78, 29,823.69 and 16,529.82 is: 22,799.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.78 : 29,823.69 = 16,529.82 : x
  2. Step 2: Convert to fraction form
    21,622.78/29,823.69 = 16,529.82/x
  3. Step 3: Cross multiply
    21,622.78x = 29,823.69 × 16,529.82
  4. Step 4: Simplify right side
    21,622.78x = 492,980,227.44
  5. Step 5: Solve for x
    x = 492,980,227.44/21,622.78
  6. Step 6: Final answer
    x = 22,799.11

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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.