Home / 41,998.96-63,005.29-12,419.78

Finding the Fourth Proportional to 41,998.96, 63,005.29 and 12,419.78

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Solution

The fourth proportional to 41,998.96, 63,005.29 and 12,419.78 is: 18,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,998.96 : 63,005.29 = 12,419.78 : x
  2. Step 2: Convert to fraction form
    41,998.96/63,005.29 = 12,419.78/x
  3. Step 3: Cross multiply
    41,998.96x = 63,005.29 × 12,419.78
  4. Step 4: Simplify right side
    41,998.96x = 782,511,918.83
  5. Step 5: Solve for x
    x = 782,511,918.83/41,998.96
  6. Step 6: Final answer
    x = 18,631.70

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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.