Home / 43,420.48-65,161.82-18,478.05

Finding the Fourth Proportional to 43,420.48, 65,161.82 and 18,478.05

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Solution

The fourth proportional to 43,420.48, 65,161.82 and 18,478.05 is: 27,730.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,420.48 : 65,161.82 = 18,478.05 : x
  2. Step 2: Convert to fraction form
    43,420.48/65,161.82 = 18,478.05/x
  3. Step 3: Cross multiply
    43,420.48x = 65,161.82 × 18,478.05
  4. Step 4: Simplify right side
    43,420.48x = 1,204,063,169.89
  5. Step 5: Solve for x
    x = 1,204,063,169.89/43,420.48
  6. Step 6: Final answer
    x = 27,730.31

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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.