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Finding the Fourth Proportional to 26,805.60, 37,027.80 and 20,595.60

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Solution

The fourth proportional to 26,805.60, 37,027.80 and 20,595.60 is: 28,449.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,805.60 : 37,027.80 = 20,595.60 : x
  2. Step 2: Convert to fraction form
    26,805.60/37,027.80 = 20,595.60/x
  3. Step 3: Cross multiply
    26,805.60x = 37,027.80 × 20,595.60
  4. Step 4: Simplify right side
    26,805.60x = 762,609,757.68
  5. Step 5: Solve for x
    x = 762,609,757.68/26,805.60
  6. Step 6: Final answer
    x = 28,449.64

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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.