Home / 30,120.12-41,562.36-16,687.98

Finding the Fourth Proportional to 30,120.12, 41,562.36 and 16,687.98

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Solution

The fourth proportional to 30,120.12, 41,562.36 and 16,687.98 is: 23,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.12 : 41,562.36 = 16,687.98 : x
  2. Step 2: Convert to fraction form
    30,120.12/41,562.36 = 16,687.98/x
  3. Step 3: Cross multiply
    30,120.12x = 41,562.36 × 16,687.98
  4. Step 4: Simplify right side
    30,120.12x = 693,591,832.43
  5. Step 5: Solve for x
    x = 693,591,832.43/30,120.12
  6. Step 6: Final answer
    x = 23,027.53

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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.