Home / 30,186.89-45,262.76-20,203.03

Finding the Fourth Proportional to 30,186.89, 45,262.76 and 20,203.03

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Solution

The fourth proportional to 30,186.89, 45,262.76 and 20,203.03 is: 30,292.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.89 : 45,262.76 = 20,203.03 : x
  2. Step 2: Convert to fraction form
    30,186.89/45,262.76 = 20,203.03/x
  3. Step 3: Cross multiply
    30,186.89x = 45,262.76 × 20,203.03
  4. Step 4: Simplify right side
    30,186.89x = 914,444,671.85
  5. Step 5: Solve for x
    x = 914,444,671.85/30,186.89
  6. Step 6: Final answer
    x = 30,292.78

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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.