Home / 22,052.12-30,431.79-12,982.75

Finding the Fourth Proportional to 22,052.12, 30,431.79 and 12,982.75

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Solution

The fourth proportional to 22,052.12, 30,431.79 and 12,982.75 is: 17,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,052.12 : 30,431.79 = 12,982.75 : x
  2. Step 2: Convert to fraction form
    22,052.12/30,431.79 = 12,982.75/x
  3. Step 3: Cross multiply
    22,052.12x = 30,431.79 × 12,982.75
  4. Step 4: Simplify right side
    22,052.12x = 395,088,245.54
  5. Step 5: Solve for x
    x = 395,088,245.54/22,052.12
  6. Step 6: Final answer
    x = 17,916.12

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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.