Home / 43,181.10-64,780.46-18,221.15

Finding the Fourth Proportional to 43,181.10, 64,780.46 and 18,221.15

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Solution

The fourth proportional to 43,181.10, 64,780.46 and 18,221.15 is: 27,335.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,181.10 : 64,780.46 = 18,221.15 : x
  2. Step 2: Convert to fraction form
    43,181.10/64,780.46 = 18,221.15/x
  3. Step 3: Cross multiply
    43,181.10x = 64,780.46 × 18,221.15
  4. Step 4: Simplify right side
    43,181.10x = 1,180,374,478.73
  5. Step 5: Solve for x
    x = 1,180,374,478.73/43,181.10
  6. Step 6: Final answer
    x = 27,335.44

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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.