Home / 43,872.28-65,788.64-21,677

Finding the Fourth Proportional to 43,872.28, 65,788.64 and 21,677

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Solution

The fourth proportional to 43,872.28, 65,788.64 and 21,677 is: 32,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,872.28 : 65,788.64 = 21,677 : x
  2. Step 2: Convert to fraction form
    43,872.28/65,788.64 = 21,677/x
  3. Step 3: Cross multiply
    43,872.28x = 65,788.64 × 21,677
  4. Step 4: Simplify right side
    43,872.28x = 1,426,100,349.28
  5. Step 5: Solve for x
    x = 1,426,100,349.28/43,872.28
  6. Step 6: Final answer
    x = 32,505.73

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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.