Home / 20,235.77-30,346.36-8,549.90

Finding the Fourth Proportional to 20,235.77, 30,346.36 and 8,549.90

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Solution

The fourth proportional to 20,235.77, 30,346.36 and 8,549.90 is: 12,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.77 : 30,346.36 = 8,549.90 : x
  2. Step 2: Convert to fraction form
    20,235.77/30,346.36 = 8,549.90/x
  3. Step 3: Cross multiply
    20,235.77x = 30,346.36 × 8,549.90
  4. Step 4: Simplify right side
    20,235.77x = 259,458,148.88
  5. Step 5: Solve for x
    x = 259,458,148.88/20,235.77
  6. Step 6: Final answer
    x = 12,821.76

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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.