Home / 33,640.68-46,406.16-20,889.84

Finding the Fourth Proportional to 33,640.68, 46,406.16 and 20,889.84

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Solution

The fourth proportional to 33,640.68, 46,406.16 and 20,889.84 is: 28,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,640.68 : 46,406.16 = 20,889.84 : x
  2. Step 2: Convert to fraction form
    33,640.68/46,406.16 = 20,889.84/x
  3. Step 3: Cross multiply
    33,640.68x = 46,406.16 × 20,889.84
  4. Step 4: Simplify right side
    33,640.68x = 969,417,257.41
  5. Step 5: Solve for x
    x = 969,417,257.41/33,640.68
  6. Step 6: Final answer
    x = 28,816.82

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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.