Home / 20,269.42-27,972.26-12,716.06

Finding the Fourth Proportional to 20,269.42, 27,972.26 and 12,716.06

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Solution

The fourth proportional to 20,269.42, 27,972.26 and 12,716.06 is: 17,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.42 : 27,972.26 = 12,716.06 : x
  2. Step 2: Convert to fraction form
    20,269.42/27,972.26 = 12,716.06/x
  3. Step 3: Cross multiply
    20,269.42x = 27,972.26 × 12,716.06
  4. Step 4: Simplify right side
    20,269.42x = 355,696,936.50
  5. Step 5: Solve for x
    x = 355,696,936.50/20,269.42
  6. Step 6: Final answer
    x = 17,548.45

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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.