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Finding the Fourth Proportional to 26,229, 39,339.55 and 8,457.37

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Solution

The fourth proportional to 26,229, 39,339.55 and 8,457.37 is: 12,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,229 : 39,339.55 = 8,457.37 : x
  2. Step 2: Convert to fraction form
    26,229/39,339.55 = 8,457.37/x
  3. Step 3: Cross multiply
    26,229x = 39,339.55 × 8,457.37
  4. Step 4: Simplify right side
    26,229x = 332,709,129.98
  5. Step 5: Solve for x
    x = 332,709,129.98/26,229
  6. Step 6: Final answer
    x = 12,684.78

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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.