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Finding the Fourth Proportional to 26,048.80, 39,073.20 and 8,520.40

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Solution

The fourth proportional to 26,048.80, 39,073.20 and 8,520.40 is: 12,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,048.80 : 39,073.20 = 8,520.40 : x
  2. Step 2: Convert to fraction form
    26,048.80/39,073.20 = 8,520.40/x
  3. Step 3: Cross multiply
    26,048.80x = 39,073.20 × 8,520.40
  4. Step 4: Simplify right side
    26,048.80x = 332,919,293.28
  5. Step 5: Solve for x
    x = 332,919,293.28/26,048.80
  6. Step 6: Final answer
    x = 12,780.60

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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.