Home / 30,321.70-41,838.96-16,889.92

Finding the Fourth Proportional to 30,321.70, 41,838.96 and 16,889.92

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Solution

The fourth proportional to 30,321.70, 41,838.96 and 16,889.92 is: 23,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.70 : 41,838.96 = 16,889.92 : x
  2. Step 2: Convert to fraction form
    30,321.70/41,838.96 = 16,889.92/x
  3. Step 3: Cross multiply
    30,321.70x = 41,838.96 × 16,889.92
  4. Step 4: Simplify right side
    30,321.70x = 706,656,687.28
  5. Step 5: Solve for x
    x = 706,656,687.28/30,321.70
  6. Step 6: Final answer
    x = 23,305.31

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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.