Home / 21,187.25-29,268.89-16,932.85

Finding the Fourth Proportional to 21,187.25, 29,268.89 and 16,932.85

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Solution

The fourth proportional to 21,187.25, 29,268.89 and 16,932.85 is: 23,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.25 : 29,268.89 = 16,932.85 : x
  2. Step 2: Convert to fraction form
    21,187.25/29,268.89 = 16,932.85/x
  3. Step 3: Cross multiply
    21,187.25x = 29,268.89 × 16,932.85
  4. Step 4: Simplify right side
    21,187.25x = 495,605,724.95
  5. Step 5: Solve for x
    x = 495,605,724.95/21,187.25
  6. Step 6: Final answer
    x = 23,391.70

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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.