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Finding the Fourth Proportional to 26,800.35, 40,200.80 and 10,155.90

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Solution

The fourth proportional to 26,800.35, 40,200.80 and 10,155.90 is: 15,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,800.35 : 40,200.80 = 10,155.90 : x
  2. Step 2: Convert to fraction form
    26,800.35/40,200.80 = 10,155.90/x
  3. Step 3: Cross multiply
    26,800.35x = 40,200.80 × 10,155.90
  4. Step 4: Simplify right side
    26,800.35x = 408,275,253.94
  5. Step 5: Solve for x
    x = 408,275,253.94/26,800.35
  6. Step 6: Final answer
    x = 15,233.95

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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.