Home / 18,720.22-28,070.94-6,235.85

Finding the Fourth Proportional to 18,720.22, 28,070.94 and 6,235.85

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Solution

The fourth proportional to 18,720.22, 28,070.94 and 6,235.85 is: 9,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.22 : 28,070.94 = 6,235.85 : x
  2. Step 2: Convert to fraction form
    18,720.22/28,070.94 = 6,235.85/x
  3. Step 3: Cross multiply
    18,720.22x = 28,070.94 × 6,235.85
  4. Step 4: Simplify right side
    18,720.22x = 175,046,217.99
  5. Step 5: Solve for x
    x = 175,046,217.99/18,720.22
  6. Step 6: Final answer
    x = 9,350.65

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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.