Home / 30,879.64-46,185.90-18,199.24

Finding the Fourth Proportional to 30,879.64, 46,185.90 and 18,199.24

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Solution

The fourth proportional to 30,879.64, 46,185.90 and 18,199.24 is: 27,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879.64 : 46,185.90 = 18,199.24 : x
  2. Step 2: Convert to fraction form
    30,879.64/46,185.90 = 18,199.24/x
  3. Step 3: Cross multiply
    30,879.64x = 46,185.90 × 18,199.24
  4. Step 4: Simplify right side
    30,879.64x = 840,548,278.72
  5. Step 5: Solve for x
    x = 840,548,278.72/30,879.64
  6. Step 6: Final answer
    x = 27,220.15

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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.