Home / 20,158.88-30,249.25-9,770.63

Finding the Fourth Proportional to 20,158.88, 30,249.25 and 9,770.63

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Solution

The fourth proportional to 20,158.88, 30,249.25 and 9,770.63 is: 14,661.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.88 : 30,249.25 = 9,770.63 : x
  2. Step 2: Convert to fraction form
    20,158.88/30,249.25 = 9,770.63/x
  3. Step 3: Cross multiply
    20,158.88x = 30,249.25 × 9,770.63
  4. Step 4: Simplify right side
    20,158.88x = 295,554,053.85
  5. Step 5: Solve for x
    x = 295,554,053.85/20,158.88
  6. Step 6: Final answer
    x = 14,661.24

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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.