Home / 33,336.50-45,982.69-21,380.90

Finding the Fourth Proportional to 33,336.50, 45,982.69 and 21,380.90

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Solution

The fourth proportional to 33,336.50, 45,982.69 and 21,380.90 is: 29,491.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,336.50 : 45,982.69 = 21,380.90 : x
  2. Step 2: Convert to fraction form
    33,336.50/45,982.69 = 21,380.90/x
  3. Step 3: Cross multiply
    33,336.50x = 45,982.69 × 21,380.90
  4. Step 4: Simplify right side
    33,336.50x = 983,151,013.26
  5. Step 5: Solve for x
    x = 983,151,013.26/33,336.50
  6. Step 6: Final answer
    x = 29,491.73

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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.