Home / 33,320.22-45,977.46-21,399.70

Finding the Fourth Proportional to 33,320.22, 45,977.46 and 21,399.70

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Solution

The fourth proportional to 33,320.22, 45,977.46 and 21,399.70 is: 29,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.22 : 45,977.46 = 21,399.70 : x
  2. Step 2: Convert to fraction form
    33,320.22/45,977.46 = 21,399.70/x
  3. Step 3: Cross multiply
    33,320.22x = 45,977.46 × 21,399.70
  4. Step 4: Simplify right side
    33,320.22x = 983,903,850.76
  5. Step 5: Solve for x
    x = 983,903,850.76/33,320.22
  6. Step 6: Final answer
    x = 29,528.73

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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.