Home / 20,766.32-31,151.28-5,976.44

Finding the Fourth Proportional to 20,766.32, 31,151.28 and 5,976.44

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Solution

The fourth proportional to 20,766.32, 31,151.28 and 5,976.44 is: 8,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.32 : 31,151.28 = 5,976.44 : x
  2. Step 2: Convert to fraction form
    20,766.32/31,151.28 = 5,976.44/x
  3. Step 3: Cross multiply
    20,766.32x = 31,151.28 × 5,976.44
  4. Step 4: Simplify right side
    20,766.32x = 186,173,755.84
  5. Step 5: Solve for x
    x = 186,173,755.84/20,766.32
  6. Step 6: Final answer
    x = 8,965.18

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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.