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Finding the Fourth Proportional to 43,327.89, 64,991.82 and 15,625.89

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Solution

The fourth proportional to 43,327.89, 64,991.82 and 15,625.89 is: 23,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,327.89 : 64,991.82 = 15,625.89 : x
  2. Step 2: Convert to fraction form
    43,327.89/64,991.82 = 15,625.89/x
  3. Step 3: Cross multiply
    43,327.89x = 64,991.82 × 15,625.89
  4. Step 4: Simplify right side
    43,327.89x = 1,015,555,030.22
  5. Step 5: Solve for x
    x = 1,015,555,030.22/43,327.89
  6. Step 6: Final answer
    x = 23,438.83

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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.