Home / 43,845.52-65,778.20-12,683.28

Finding the Fourth Proportional to 43,845.52, 65,778.20 and 12,683.28

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Solution

The fourth proportional to 43,845.52, 65,778.20 and 12,683.28 is: 19,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,845.52 : 65,778.20 = 12,683.28 : x
  2. Step 2: Convert to fraction form
    43,845.52/65,778.20 = 12,683.28/x
  3. Step 3: Cross multiply
    43,845.52x = 65,778.20 × 12,683.28
  4. Step 4: Simplify right side
    43,845.52x = 834,283,328.50
  5. Step 5: Solve for x
    x = 834,283,328.50/43,845.52
  6. Step 6: Final answer
    x = 19,027.79

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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.