Home / 21,629.58-29,854.23-12,203.61

Finding the Fourth Proportional to 21,629.58, 29,854.23 and 12,203.61

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Solution

The fourth proportional to 21,629.58, 29,854.23 and 12,203.61 is: 16,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.58 : 29,854.23 = 12,203.61 : x
  2. Step 2: Convert to fraction form
    21,629.58/29,854.23 = 12,203.61/x
  3. Step 3: Cross multiply
    21,629.58x = 29,854.23 × 12,203.61
  4. Step 4: Simplify right side
    21,629.58x = 364,329,379.77
  5. Step 5: Solve for x
    x = 364,329,379.77/21,629.58
  6. Step 6: Final answer
    x = 16,844.03

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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.