Home / 21,202.77-29,226.33-16,940.40

Finding the Fourth Proportional to 21,202.77, 29,226.33 and 16,940.40

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Solution

The fourth proportional to 21,202.77, 29,226.33 and 16,940.40 is: 23,350.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.77 : 29,226.33 = 16,940.40 : x
  2. Step 2: Convert to fraction form
    21,202.77/29,226.33 = 16,940.40/x
  3. Step 3: Cross multiply
    21,202.77x = 29,226.33 × 16,940.40
  4. Step 4: Simplify right side
    21,202.77x = 495,105,720.73
  5. Step 5: Solve for x
    x = 495,105,720.73/21,202.77
  6. Step 6: Final answer
    x = 23,350.99

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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.