Home / 43,847.20-65,727.60-21,642.40

Finding the Fourth Proportional to 43,847.20, 65,727.60 and 21,642.40

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Solution

The fourth proportional to 43,847.20, 65,727.60 and 21,642.40 is: 32,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,847.20 : 65,727.60 = 21,642.40 : x
  2. Step 2: Convert to fraction form
    43,847.20/65,727.60 = 21,642.40/x
  3. Step 3: Cross multiply
    43,847.20x = 65,727.60 × 21,642.40
  4. Step 4: Simplify right side
    43,847.20x = 1,422,503,010.24
  5. Step 5: Solve for x
    x = 1,422,503,010.24/43,847.20
  6. Step 6: Final answer
    x = 32,442.28

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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.