Home / 30,400.21-45,669.51-21,992.65

Finding the Fourth Proportional to 30,400.21, 45,669.51 and 21,992.65

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Solution

The fourth proportional to 30,400.21, 45,669.51 and 21,992.65 is: 33,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.21 : 45,669.51 = 21,992.65 : x
  2. Step 2: Convert to fraction form
    30,400.21/45,669.51 = 21,992.65/x
  3. Step 3: Cross multiply
    30,400.21x = 45,669.51 × 21,992.65
  4. Step 4: Simplify right side
    30,400.21x = 1,004,393,320.75
  5. Step 5: Solve for x
    x = 1,004,393,320.75/30,400.21
  6. Step 6: Final answer
    x = 33,039.03

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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.