Home / 21,383.30-29,468.13-18,583.94

Finding the Fourth Proportional to 21,383.30, 29,468.13 and 18,583.94

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Solution

The fourth proportional to 21,383.30, 29,468.13 and 18,583.94 is: 25,610.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.30 : 29,468.13 = 18,583.94 : x
  2. Step 2: Convert to fraction form
    21,383.30/29,468.13 = 18,583.94/x
  3. Step 3: Cross multiply
    21,383.30x = 29,468.13 × 18,583.94
  4. Step 4: Simplify right side
    21,383.30x = 547,633,959.83
  5. Step 5: Solve for x
    x = 547,633,959.83/21,383.30
  6. Step 6: Final answer
    x = 25,610.36

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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.