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Finding the Fourth Proportional to 26,991.60, 40,530.60 and 18,265.20

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Solution

The fourth proportional to 26,991.60, 40,530.60 and 18,265.20 is: 27,427.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,991.60 : 40,530.60 = 18,265.20 : x
  2. Step 2: Convert to fraction form
    26,991.60/40,530.60 = 18,265.20/x
  3. Step 3: Cross multiply
    26,991.60x = 40,530.60 × 18,265.20
  4. Step 4: Simplify right side
    26,991.60x = 740,299,515.12
  5. Step 5: Solve for x
    x = 740,299,515.12/26,991.60
  6. Step 6: Final answer
    x = 27,427.03

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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.