Home / 17,981.30-24,817.11-10,912.70

Finding the Fourth Proportional to 17,981.30, 24,817.11 and 10,912.70

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Solution

The fourth proportional to 17,981.30, 24,817.11 and 10,912.70 is: 15,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,981.30 : 24,817.11 = 10,912.70 : x
  2. Step 2: Convert to fraction form
    17,981.30/24,817.11 = 10,912.70/x
  3. Step 3: Cross multiply
    17,981.30x = 24,817.11 × 10,912.70
  4. Step 4: Simplify right side
    17,981.30x = 270,821,676.30
  5. Step 5: Solve for x
    x = 270,821,676.30/17,981.30
  6. Step 6: Final answer
    x = 15,061.30

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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.