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Finding the Fourth Proportional to 26,059.40, 39,074.70 and 8,520.20

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Solution

The fourth proportional to 26,059.40, 39,074.70 and 8,520.20 is: 12,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,059.40 : 39,074.70 = 8,520.20 : x
  2. Step 2: Convert to fraction form
    26,059.40/39,074.70 = 8,520.20/x
  3. Step 3: Cross multiply
    26,059.40x = 39,074.70 × 8,520.20
  4. Step 4: Simplify right side
    26,059.40x = 332,924,258.94
  5. Step 5: Solve for x
    x = 332,924,258.94/26,059.40
  6. Step 6: Final answer
    x = 12,775.59

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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.