Home / 20,269.40-27,972.24-12,716.04

Finding the Fourth Proportional to 20,269.40, 27,972.24 and 12,716.04

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Solution

The fourth proportional to 20,269.40, 27,972.24 and 12,716.04 is: 17,548.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.40 : 27,972.24 = 12,716.04 : x
  2. Step 2: Convert to fraction form
    20,269.40/27,972.24 = 12,716.04/x
  3. Step 3: Cross multiply
    20,269.40x = 27,972.24 × 12,716.04
  4. Step 4: Simplify right side
    20,269.40x = 355,696,122.73
  5. Step 5: Solve for x
    x = 355,696,122.73/20,269.40
  6. Step 6: Final answer
    x = 17,548.43

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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.