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Finding the Fourth Proportional to 25,999.96, 35,847.39 and 21,699.22

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Solution

The fourth proportional to 25,999.96, 35,847.39 and 21,699.22 is: 29,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,999.96 : 35,847.39 = 21,699.22 : x
  2. Step 2: Convert to fraction form
    25,999.96/35,847.39 = 21,699.22/x
  3. Step 3: Cross multiply
    25,999.96x = 35,847.39 × 21,699.22
  4. Step 4: Simplify right side
    25,999.96x = 777,860,402.04
  5. Step 5: Solve for x
    x = 777,860,402.04/25,999.96
  6. Step 6: Final answer
    x = 29,917.75

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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.