Home / 20,922.25-31,382.97-6,130.84

Finding the Fourth Proportional to 20,922.25, 31,382.97 and 6,130.84

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Solution

The fourth proportional to 20,922.25, 31,382.97 and 6,130.84 is: 9,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.25 : 31,382.97 = 6,130.84 : x
  2. Step 2: Convert to fraction form
    20,922.25/31,382.97 = 6,130.84/x
  3. Step 3: Cross multiply
    20,922.25x = 31,382.97 × 6,130.84
  4. Step 4: Simplify right side
    20,922.25x = 192,403,942.43
  5. Step 5: Solve for x
    x = 192,403,942.43/20,922.25
  6. Step 6: Final answer
    x = 9,196.14

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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.