Home / 30,400.71-45,670.26-21,993.15

Finding the Fourth Proportional to 30,400.71, 45,670.26 and 21,993.15

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Solution

The fourth proportional to 30,400.71, 45,670.26 and 21,993.15 is: 33,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.71 : 45,670.26 = 21,993.15 : x
  2. Step 2: Convert to fraction form
    30,400.71/45,670.26 = 21,993.15/x
  3. Step 3: Cross multiply
    30,400.71x = 45,670.26 × 21,993.15
  4. Step 4: Simplify right side
    30,400.71x = 1,004,432,650.37
  5. Step 5: Solve for x
    x = 1,004,432,650.37/30,400.71
  6. Step 6: Final answer
    x = 33,039.78

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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.