Home / 21,453.52-29,605.80-12,022

Finding the Fourth Proportional to 21,453.52, 29,605.80 and 12,022

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Solution

The fourth proportional to 21,453.52, 29,605.80 and 12,022 is: 16,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.52 : 29,605.80 = 12,022 : x
  2. Step 2: Convert to fraction form
    21,453.52/29,605.80 = 12,022/x
  3. Step 3: Cross multiply
    21,453.52x = 29,605.80 × 12,022
  4. Step 4: Simplify right side
    21,453.52x = 355,920,927.60
  5. Step 5: Solve for x
    x = 355,920,927.60/21,453.52
  6. Step 6: Final answer
    x = 16,590.33

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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.