Home / 21,588.30-29,791.31-12,028.23

Finding the Fourth Proportional to 21,588.30, 29,791.31 and 12,028.23

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Solution

The fourth proportional to 21,588.30, 29,791.31 and 12,028.23 is: 16,598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588.30 : 29,791.31 = 12,028.23 : x
  2. Step 2: Convert to fraction form
    21,588.30/29,791.31 = 12,028.23/x
  3. Step 3: Cross multiply
    21,588.30x = 29,791.31 × 12,028.23
  4. Step 4: Simplify right side
    21,588.30x = 358,336,668.54
  5. Step 5: Solve for x
    x = 358,336,668.54/21,588.30
  6. Step 6: Final answer
    x = 16,598.65

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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.