Home / 26,789.64-36,861.05-21,991.94

Finding the Fourth Proportional to 26,789.64, 36,861.05 and 21,991.94

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Solution

The fourth proportional to 26,789.64, 36,861.05 and 21,991.94 is: 30,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,789.64 : 36,861.05 = 21,991.94 : x
  2. Step 2: Convert to fraction form
    26,789.64/36,861.05 = 21,991.94/x
  3. Step 3: Cross multiply
    26,789.64x = 36,861.05 × 21,991.94
  4. Step 4: Simplify right side
    26,789.64x = 810,645,889.98
  5. Step 5: Solve for x
    x = 810,645,889.98/26,789.64
  6. Step 6: Final answer
    x = 30,259.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.