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Finding the Fourth Proportional to 34,255.78, 51,400.04 and 12,079.60

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Solution

The fourth proportional to 34,255.78, 51,400.04 and 12,079.60 is: 18,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,255.78 : 51,400.04 = 12,079.60 : x
  2. Step 2: Convert to fraction form
    34,255.78/51,400.04 = 12,079.60/x
  3. Step 3: Cross multiply
    34,255.78x = 51,400.04 × 12,079.60
  4. Step 4: Simplify right side
    34,255.78x = 620,891,734.29
  5. Step 5: Solve for x
    x = 620,891,734.29/34,255.78
  6. Step 6: Final answer
    x = 18,125.17

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1.5x scale

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.