Home / 28,207.82-42,303.20-8,481.14

Finding the Fourth Proportional to 28,207.82, 42,303.20 and 8,481.14

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Solution

The fourth proportional to 28,207.82, 42,303.20 and 8,481.14 is: 12,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.82 : 42,303.20 = 8,481.14 : x
  2. Step 2: Convert to fraction form
    28,207.82/42,303.20 = 8,481.14/x
  3. Step 3: Cross multiply
    28,207.82x = 42,303.20 × 8,481.14
  4. Step 4: Simplify right side
    28,207.82x = 358,779,361.65
  5. Step 5: Solve for x
    x = 358,779,361.65/28,207.82
  6. Step 6: Final answer
    x = 12,719.15

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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.