Home / 21,629.57-29,854.24-12,203.60

Finding the Fourth Proportional to 21,629.57, 29,854.24 and 12,203.60

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Solution

The fourth proportional to 21,629.57, 29,854.24 and 12,203.60 is: 16,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.57 : 29,854.24 = 12,203.60 : x
  2. Step 2: Convert to fraction form
    21,629.57/29,854.24 = 12,203.60/x
  3. Step 3: Cross multiply
    21,629.57x = 29,854.24 × 12,203.60
  4. Step 4: Simplify right side
    21,629.57x = 364,329,023.48
  5. Step 5: Solve for x
    x = 364,329,023.48/21,629.57
  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.