Home / 28,213.04-42,354.12-13,234.64

Finding the Fourth Proportional to 28,213.04, 42,354.12 and 13,234.64

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Solution

The fourth proportional to 28,213.04, 42,354.12 and 13,234.64 is: 19,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.04 : 42,354.12 = 13,234.64 : x
  2. Step 2: Convert to fraction form
    28,213.04/42,354.12 = 13,234.64/x
  3. Step 3: Cross multiply
    28,213.04x = 42,354.12 × 13,234.64
  4. Step 4: Simplify right side
    28,213.04x = 560,541,530.72
  5. Step 5: Solve for x
    x = 560,541,530.72/28,213.04
  6. Step 6: Final answer
    x = 19,868.17

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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.