Home / 26,529.88-39,806.07-12,489.60

Finding the Fourth Proportional to 26,529.88, 39,806.07 and 12,489.60

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Solution

The fourth proportional to 26,529.88, 39,806.07 and 12,489.60 is: 18,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,529.88 : 39,806.07 = 12,489.60 : x
  2. Step 2: Convert to fraction form
    26,529.88/39,806.07 = 12,489.60/x
  3. Step 3: Cross multiply
    26,529.88x = 39,806.07 × 12,489.60
  4. Step 4: Simplify right side
    26,529.88x = 497,161,891.87
  5. Step 5: Solve for x
    x = 497,161,891.87/26,529.88
  6. Step 6: Final answer
    x = 18,739.70

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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.