Home / 33,320.21-45,977.44-21,399.69

Finding the Fourth Proportional to 33,320.21, 45,977.44 and 21,399.69

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Solution

The fourth proportional to 33,320.21, 45,977.44 and 21,399.69 is: 29,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.21 : 45,977.44 = 21,399.69 : x
  2. Step 2: Convert to fraction form
    33,320.21/45,977.44 = 21,399.69/x
  3. Step 3: Cross multiply
    33,320.21x = 45,977.44 × 21,399.69
  4. Step 4: Simplify right side
    33,320.21x = 983,902,962.99
  5. Step 5: Solve for x
    x = 983,902,962.99/33,320.21
  6. Step 6: Final answer
    x = 29,528.71

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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.