Home / 20,755.44-31,131.90-6,715.17

Finding the Fourth Proportional to 20,755.44, 31,131.90 and 6,715.17

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Solution

The fourth proportional to 20,755.44, 31,131.90 and 6,715.17 is: 10,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.44 : 31,131.90 = 6,715.17 : x
  2. Step 2: Convert to fraction form
    20,755.44/31,131.90 = 6,715.17/x
  3. Step 3: Cross multiply
    20,755.44x = 31,131.90 × 6,715.17
  4. Step 4: Simplify right side
    20,755.44x = 209,056,000.92
  5. Step 5: Solve for x
    x = 209,056,000.92/20,755.44
  6. Step 6: Final answer
    x = 10,072.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.