Home / 28,245.21-42,368.13-8,523.96

Finding the Fourth Proportional to 28,245.21, 42,368.13 and 8,523.96

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Solution

The fourth proportional to 28,245.21, 42,368.13 and 8,523.96 is: 12,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.21 : 42,368.13 = 8,523.96 : x
  2. Step 2: Convert to fraction form
    28,245.21/42,368.13 = 8,523.96/x
  3. Step 3: Cross multiply
    28,245.21x = 42,368.13 × 8,523.96
  4. Step 4: Simplify right side
    28,245.21x = 361,144,245.39
  5. Step 5: Solve for x
    x = 361,144,245.39/28,245.21
  6. Step 6: Final answer
    x = 12,786.04

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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.