Home / 43,781.78-65,677.53-18,824.35

Finding the Fourth Proportional to 43,781.78, 65,677.53 and 18,824.35

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Solution

The fourth proportional to 43,781.78, 65,677.53 and 18,824.35 is: 28,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,781.78 : 65,677.53 = 18,824.35 : x
  2. Step 2: Convert to fraction form
    43,781.78/65,677.53 = 18,824.35/x
  3. Step 3: Cross multiply
    43,781.78x = 65,677.53 × 18,824.35
  4. Step 4: Simplify right side
    43,781.78x = 1,236,336,647.66
  5. Step 5: Solve for x
    x = 1,236,336,647.66/43,781.78
  6. Step 6: Final answer
    x = 28,238.61

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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.