Home / 43,782.78-65,679.03-18,825.35

Finding the Fourth Proportional to 43,782.78, 65,679.03 and 18,825.35

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Solution

The fourth proportional to 43,782.78, 65,679.03 and 18,825.35 is: 28,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,782.78 : 65,679.03 = 18,825.35 : x
  2. Step 2: Convert to fraction form
    43,782.78/65,679.03 = 18,825.35/x
  3. Step 3: Cross multiply
    43,782.78x = 65,679.03 × 18,825.35
  4. Step 4: Simplify right side
    43,782.78x = 1,236,430,727.41
  5. Step 5: Solve for x
    x = 1,236,430,727.41/43,782.78
  6. Step 6: Final answer
    x = 28,240.11

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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.