Home / 21,046.11-29,042.71-11,485.75

Finding the Fourth Proportional to 21,046.11, 29,042.71 and 11,485.75

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Solution

The fourth proportional to 21,046.11, 29,042.71 and 11,485.75 is: 15,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.11 : 29,042.71 = 11,485.75 : x
  2. Step 2: Convert to fraction form
    21,046.11/29,042.71 = 11,485.75/x
  3. Step 3: Cross multiply
    21,046.11x = 29,042.71 × 11,485.75
  4. Step 4: Simplify right side
    21,046.11x = 333,577,306.38
  5. Step 5: Solve for x
    x = 333,577,306.38/21,046.11
  6. Step 6: Final answer
    x = 15,849.84

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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.