Home / 23,078.31-34,619.13-8,287.35

Finding the Fourth Proportional to 23,078.31, 34,619.13 and 8,287.35

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Solution

The fourth proportional to 23,078.31, 34,619.13 and 8,287.35 is: 12,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,078.31 : 34,619.13 = 8,287.35 : x
  2. Step 2: Convert to fraction form
    23,078.31/34,619.13 = 8,287.35/x
  3. Step 3: Cross multiply
    23,078.31x = 34,619.13 × 8,287.35
  4. Step 4: Simplify right side
    23,078.31x = 286,900,847.01
  5. Step 5: Solve for x
    x = 286,900,847.01/23,078.31
  6. Step 6: Final answer
    x = 12,431.62

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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.