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Finding the Fourth Proportional to 27,098.79, 40,652.10 and 8,380.37

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Solution

The fourth proportional to 27,098.79, 40,652.10 and 8,380.37 is: 12,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,098.79 : 40,652.10 = 8,380.37 : x
  2. Step 2: Convert to fraction form
    27,098.79/40,652.10 = 8,380.37/x
  3. Step 3: Cross multiply
    27,098.79x = 40,652.10 × 8,380.37
  4. Step 4: Simplify right side
    27,098.79x = 340,679,639.28
  5. Step 5: Solve for x
    x = 340,679,639.28/27,098.79
  6. Step 6: Final answer
    x = 12,571.77

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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.