Home / 21,352.97-29,464.87-12,398.73

Finding the Fourth Proportional to 21,352.97, 29,464.87 and 12,398.73

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Solution

The fourth proportional to 21,352.97, 29,464.87 and 12,398.73 is: 17,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.97 : 29,464.87 = 12,398.73 : x
  2. Step 2: Convert to fraction form
    21,352.97/29,464.87 = 12,398.73/x
  3. Step 3: Cross multiply
    21,352.97x = 29,464.87 × 12,398.73
  4. Step 4: Simplify right side
    21,352.97x = 365,326,758.30
  5. Step 5: Solve for x
    x = 365,326,758.30/21,352.97
  6. Step 6: Final answer
    x = 17,108.94

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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.