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Finding the Fourth Proportional to 26,998.60, 40,433.10 and 21,814.60

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Solution

The fourth proportional to 26,998.60, 40,433.10 and 21,814.60 is: 32,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,998.60 : 40,433.10 = 21,814.60 : x
  2. Step 2: Convert to fraction form
    26,998.60/40,433.10 = 21,814.60/x
  3. Step 3: Cross multiply
    26,998.60x = 40,433.10 × 21,814.60
  4. Step 4: Simplify right side
    26,998.60x = 882,031,903.26
  5. Step 5: Solve for x
    x = 882,031,903.26/26,998.60
  6. Step 6: Final answer
    x = 32,669.54

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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.