Home / 30,172.88-45,245.96-16,129.51

Finding the Fourth Proportional to 30,172.88, 45,245.96 and 16,129.51

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Solution

The fourth proportional to 30,172.88, 45,245.96 and 16,129.51 is: 24,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.88 : 45,245.96 = 16,129.51 : x
  2. Step 2: Convert to fraction form
    30,172.88/45,245.96 = 16,129.51/x
  3. Step 3: Cross multiply
    30,172.88x = 45,245.96 × 16,129.51
  4. Step 4: Simplify right side
    30,172.88x = 729,794,857.40
  5. Step 5: Solve for x
    x = 729,794,857.40/30,172.88
  6. Step 6: Final answer
    x = 24,187.11

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1.5x scale

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.