Home / 34,319.43-51,479.19-12,120.66

Finding the Fourth Proportional to 34,319.43, 51,479.19 and 12,120.66

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Solution

The fourth proportional to 34,319.43, 51,479.19 and 12,120.66 is: 18,181.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,319.43 : 51,479.19 = 12,120.66 : x
  2. Step 2: Convert to fraction form
    34,319.43/51,479.19 = 12,120.66/x
  3. Step 3: Cross multiply
    34,319.43x = 51,479.19 × 12,120.66
  4. Step 4: Simplify right side
    34,319.43x = 623,961,759.07
  5. Step 5: Solve for x
    x = 623,961,759.07/34,319.43
  6. Step 6: Final answer
    x = 18,181.01

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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.